Rich.C@EMPOWERgmat.com posted a reply to A teacher wants to select a team of 5 players from a group in the Problem Solving forum
“Hi VJesus12, We''re told that a teacher wants to select a team of 5 players from a group of 9 players. However, she needs to keep the following constraints in mind: If Jane is in the team, Sue should also be included in the team and vice versa. We''re asked for the number of different ways that ...”
April 11, 2019
Rich.C@EMPOWERgmat.com posted a reply to The time it took car A to travel 400 miles was 2 hours less in the Problem Solving forum
“Hi swerve, We''re told that the time it took car A to travel 400 miles was 2 hours LESS than the time it took car B to travel the same distance and car A''s average speed was 10 miles per hour GREATER than that of car B. We''re asked for car B''s average speed in miles per hour. This question ...”
April 11, 2019
Rich.C@EMPOWERgmat.com posted a reply to A newly-opened retail store made $400 profit on the initial in the Problem Solving forum “Hi All, We''re told that a newly-opened retail store made$400 profit on the initial expenditure of $25000, and then made$1200 profit on the next $80000 expenditure. We''re asked for the approximate percentage change in the ratio of profit to expenditure change from the first$25000 expenditure ...”
April 11, 2019
Rich.C@EMPOWERgmat.com posted a reply to The architects of a certain type of building estimate in the Problem Solving forum
“Hi All, We''re told that the architects of a certain type of building estimate construction costs to be $2.0 million per floor for each of the first 5 floors,$2.5 million per floor for each of the next 3 floors, and $3.5 million per floor for any additional floors. We''re asked what the ...” April 11, 2019 Rich.C@EMPOWERgmat.com posted a reply to This year, x people won an Olympic medal for water in the Problem Solving forum “Hi All, We''re told that X people won a medal for water competitions. Of those X people, 1/3 won a medal for swimming; of those who won a medal for SWIMMING, 1/4 also won a medal for diving. This question can be solved by TESTing VALUES (and taking a few notes). The common denominator between ...” April 11, 2019 Rich.C@EMPOWERgmat.com posted a reply to GMAT Study group (Asia/US) in the The GMAT Avengers Study Group forum “Hi shoc064, Forming a study group could be quite helpful, but you''ll still need a proper Study Plan to hit your Score Goal. From your post, it''s not clear whether you''re just beginning your studies or if you''ve put in some significant study time already, so if you''re interested in any advice ...” April 11, 2019 Rich.C@EMPOWERgmat.com posted a reply to I made it! From 640 to 720. in the I just Beat The GMAT! forum “Hi realcanario, That''s OUTSTANDING news! Your 690 was already a fantastic Score, but pushing that up to a 720 (with a Q50) is a noteworthy improvement! With this 720/Q50, you can comfortably apply to ANY Business Schools that interest you! You have plenty of time to work on your applications ...” April 11, 2019 Rich.C@EMPOWERgmat.com posted a reply to Thabo owns exactly 140 books, and each book is either in the Problem Solving forum “Hi Joy Shaha, This question can be solved by TESTing THE ANSWERS. We''re given several facts to work with: 1) Total number of books = 140 and there are only 3 types of books. 2) Paperback Nonfiction = 20 + Hardcover Nonfiction 3) Paperback Fiction = 2(Paperback Nonfiction) We''re ...” March 31, 2019 Rich.C@EMPOWERgmat.com posted a reply to Quant Doubt in the GMAT Math forum “Hi dee1711s, To start, the GMAT is NOT going to test you on the concept of "negative factors", as an example - if you are asked for the factors of 6, then those factors are 1, 2, 3 and 6. If you''re told that A is a factor of B, then that means that A is a positive integer that ...” March 31, 2019 Rich.C@EMPOWERgmat.com posted a reply to [re-applicant] Should I retake the GMAT or switch to the GRE in the The GMAT Avengers Study Group forum “Hi deralexandre, First off, a 680/Q47 is a strong score, so it could be enough to get you into your first-choice School. As such, a retest might not be necessary. You''re ultimately asking a series of Admissions questions though, so you would likely find it beneficial to speak with an Admissions ...” March 31, 2019 Rich.C@EMPOWERgmat.com posted a reply to The water from one outlet, flowing at a constant rate, can in the Problem Solving forum “Hi All, This question is a standard "Work Formula" question. When you have 2 entities sharing a task, you can use the following formula to figure out how long it takes for the 2 entities to complete the task together. Work = (A)(B)/(A+B) where A and B are the individual times ...” March 27, 2019 Rich.C@EMPOWERgmat.com posted a reply to Is tutoring necessary for Verbal? in the GMAT Strategy forum “Hi swara31, Yes, you should be able to find online tutoring without too much trouble, but it''s not clear whether you actually need that type of resource yet. Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on how ...” March 27, 2019 Rich.C@EMPOWERgmat.com posted a reply to For all positive integers m in the Problem Solving forum “Correctted! And yes - that typo was on purpose ;o.” March 26, 2019 Rich.C@EMPOWERgmat.com posted a reply to For all positive integers m in the Problem Solving forum “Hi myspecialtie, Brent''s explanation is spot-on, so I won''t rehash any of that here. This prompt is an example of a "Symbolism" question - in which the prompt introduces a "made up" math symbol, explains how to use it and asks you to perform a calculation (and sometimes more ...” March 25, 2019 Rich.C@EMPOWERgmat.com posted a reply to Q39 V29: 560 - 2 months to go for GMAT, need 650+ in the GMAT Strategy forum “Hi amegupte0410, GMAC has publicly stated that the Official Score that you earn on Test Day is within +/- 30 points of actual ability. Assuming a similar ''swing'' in how your CATs function, your 3 CAT score results show that you essentially performed the same each time (about 550 +/- a few ...” March 25, 2019 Rich.C@EMPOWERgmat.com posted a reply to In a certain bathtub, both the hot and cold water fixtures in the Problem Solving forum “Hi All, We''re told that In a certain bathtub, both the hot and cold water fixtures leak. The cold water leak alone would fill an empty bucket in C hours, and the hot water leak alone will fill the same bucket in H hours, where C < H. If both fixtures began to leak at the same time into the ...” March 23, 2019 Rich.C@EMPOWERgmat.com posted a reply to If $$xy \neq 0$$, and 75 percent of $$x$$ equals 125 percent in the Problem Solving forum “Hi All, We''re told that neither X nor Y can equal 0 and that 75% of X is equal to 125% of Y. We''re asked which of the following is true. This question can be solved in a couple of different ways, including by TESTing VALUES. IF.... X = 100, then (75% of X) = 75 75 = 125% of Y 75 = ...” March 22, 2019 Rich.C@EMPOWERgmat.com posted a reply to If $$xy \neq 0$$ and $$2x + 3y$$ is equal to 175 percent in the Problem Solving forum “Hi All, We''re told that neither X nor Y can be 0 and that (2X + 3Y) is 175% of 8X. We''re asked for the value of X/Y. This question can be solved in a number of different ways, including by TESTing THE ANSWERS. Between Answers B and D, Answer D would be an easier Answer to TEST, so let''s try ...” March 22, 2019 Rich.C@EMPOWERgmat.com posted a reply to Find the range of values of $$x$$ that satisfy the in the Problem Solving forum “Hi All, We''re asked for the range of values of X that satisfy the inequality (X+1)(X-2) > 4. This question can be approached in a couple of different ways, including by TESTing VALUES. IF... X=10, then (11)(8) = 88 which is greater than 4. Thus, X=10 is a possible solution. Eliminate ...” March 22, 2019 Rich.C@EMPOWERgmat.com posted a reply to x is the product of all even numbers from 2 to 50, inclusive in the Problem Solving forum “Hi All, We''re told that X is the product of all even numbers from 2 to 50, inclusive. We''re asked to define what the smallest prime factor of (X+1) must be. This particular question is a variation on an Official question that periodically pops up in the forums. The main idea behind this prompt ...” March 20, 2019 Rich.C@EMPOWERgmat.com posted a reply to A furniture store sells only two models of desks, model A in the Problem Solving forum “Hi All, We''re told that a furniture store sells only two models of desks, model A and model B. The selling price of model A is$120, which is 30 percent of the selling price of the model B - and the furniture store sells 2,000 desks, 3/4 of which are model B. We''re asked for the TOTAL revenue ...”
March 20, 2019
Rich.C@EMPOWERgmat.com posted a reply to Point A in the xy-coordinate system is shown below. Given in the Problem Solving forum
“Hi All, We''re told that Point A is in the xy-coordinate system as shown - and that two other points B (4a, b) and C (2a, 5b) are also in the system. We''re asked for the AREA of triangle ABC in terms of a and b. This question can be approached in a couple of different ways, including by TESTing ...”
March 20, 2019
Rich.C@EMPOWERgmat.com posted a reply to In a group of children, the average (arithmetic mean) weight in the Problem Solving forum
“Hi All, We''re told that in a group of children, the average (arithmetic mean) weight of the boys is 60 pounds, the average weight of the girls is 48 pounds and the average weight of ALL of the children in the group is 50 pounds. We''re asked for the ratio of the number of boys to the number of ...”
March 20, 2019
Rich.C@EMPOWERgmat.com posted a reply to A certain hotel has 1,400 single rooms and 420 double rooms. in the Problem Solving forum
“Hi camitava, This is essentially a rate question. Here''s how to solve it: Single rooms take one person 15 minutes to clean and double rooms take one person 20 minutes to clean. 15 mins. = 1/4 hour 20 mins. = 1/3 hour With 1400 single rooms x 1/4 hour = 350 hours of total work for ...”
March 15, 2019
Rich.C@EMPOWERgmat.com posted a reply to A cosmetics company would like to market a six-item gift in the Problem Solving forum
“Hi All, We''re told that a cosmetics company would like to market a 6-item gift basket bundle from a set of 10 possible items, but 49 of the potential bundles have already been eliminated from consideration. We''re asked for the total number of potential bundles that are still being considered. ...”
March 15, 2019
Rich.C@EMPOWERgmat.com posted a reply to What is the sum of the integers from 1 to 999, inclusive? A in the Problem Solving forum
“Hi All, We''re asked for the sum of the integers from 1 to 999, inclusive. This question can be approached in a number of different ways, including by "bunching" The sum of 1 and 999 is 1,000 The sum of 2 and 998 is 1,000 The sum of 3 and 997 is 1,000 Etc. Using the numbers ...”
March 15, 2019
Rich.C@EMPOWERgmat.com posted a reply to A basketball team’s current roster consists of g guards an in the Problem Solving forum
“Hi All, We''re told that a basketball team’s current roster consists of G guards and F forwards - and 2 guards join and 1 forward leaves. We''re asked for the probability that a player chosen at random is a guard. This question can be approached in a couple of different ways, including by ...”
March 15, 2019
Rich.C@EMPOWERgmat.com posted a reply to After multiplying a positive integer A, which has n digits, in the Problem Solving forum
“Hi Gmat_mission, We''re told that after multiplying a positive integer A (which has N digits) by (N+2), we get a number with (N+1) digits, all of whose DIGITS are (N+1). We''re asked for the number of possible values of A that ''fit'' this description. To start, this question certainly ...”
March 15, 2019
Rich.C@EMPOWERgmat.com posted a reply to At a certain supplier, a machine of type A costs $20,000 and in the Problem Solving forum “Hi All, This question is really just about basic arithmetic and staying organized. Based on the information in the prompt, there are two ''total costs'' that we have to calculate... Total cost of purchasing 2 Type A machines = Base Price = (2)($20,000) = $40,000 The 20% down payment = ...” March 15, 2019 Rich.C@EMPOWERgmat.com posted a reply to In an office of eleven people, everyone but Lauren each in the Problem Solving forum “Hi All, We''re told that in an office of 11 people, everyone but Lauren each contributed D dollars to buy her a surprise gift for her birthday, but the gift cost a total of G dollars, which was an amount that was less than the total collected. We''re asked - if each member who donated is to ...” March 15, 2019 Rich.C@EMPOWERgmat.com posted a reply to A student worked 20 days. For each of the amount shown in th in the Problem Solving forum “Hi All, We''re told that a student worked 20 days - and the given table shows the number of days that the student earned each of 5 possible amounts of money. We''re asked for the MEDIAN amount of money earned per day for those 20 days. Since there are 20 total days, the MEDIAN will be the ...” March 12, 2019 Rich.C@EMPOWERgmat.com posted a reply to In a group of 24 musicians, some are pianists and the rest a in the Problem Solving forum “Hi All, We''re told that in a group of 24 musicians, some are pianists and the rest are violinists and exactly 1/2 of the pianists and exactly 2/3 of the violinists belong to a union. We''re asked for the LEAST possible number of union members in the group. This question can be approached in a ...” March 12, 2019 Rich.C@EMPOWERgmat.com posted a reply to If a certain reel of film runs at 5/6 of a frame per second, in the Problem Solving forum “Hi All, We''re told that a certain reel of film runs at 5/6 of a frame per second. We''re asked how long it will take to run 2580 frames of the film. While this question involves some ''ugly'' numbers, the answer choices are sufficiently ''spread out'' that you can use estimation to get the ...” March 11, 2019 Rich.C@EMPOWERgmat.com posted a reply to Five friends play blackjack in Las Vegas and lose an average in the Problem Solving forum “Hi All, We''re told that 5 friends play blackjack in Las Vegas and lose an AVERAGE of$100 each - with the losses of two of the friends totaling $380. We''re asked for the AVERAGE loss of the other 3 friends. This question is a standard Average Formula question and requires just a bit or ...” March 11, 2019 Rich.C@EMPOWERgmat.com posted a reply to The R students in a class agree to contribute equally to buy in the Problem Solving forum “Hi All, While this question is wordy, and will require some note-taking, it can be solved by TESTing VALUES. Let''s TEST... R = 5 students Y = 50 dollars X = 3 fail to pay So the ''story'' is that 5 students agree to pay an equal amount for a$50 present (that''s $10 per student). We''re ...” March 11, 2019 Rich.C@EMPOWERgmat.com posted a reply to A city council will select 2 of 9 available firefighters and in the Problem Solving forum “Hi All, We''re told that a city council will select 2 of 9 available firefighters and 1 of 6 available police officers to serve on an advisory panel. We''re asked for the number of different groups of 3 people that could serve on the panel. This question is essentially a Combination Formula ...” March 11, 2019 Rich.C@EMPOWERgmat.com posted a reply to Ramon wants to cut a rectangular board into identical square in the Problem Solving forum “Hi All, We''re asked to find the minimum number of identical SQUARES that be cut from an 18 in. x 30 in. board without ''wasting'' any of the space. To accomplish this, we need to find a square whose dimensions will evenly divide into both 18 and 30; to find the LEAST number of squares, we''ll ...” March 11, 2019 Rich.C@EMPOWERgmat.com posted a reply to Working continuously 24 hours a day, a factory bottles Soda in the Problem Solving forum “Hi All, We''re told that working continuously 24 hours a day, a factory bottles Soda Q at a rate of 500 liters per second and Soda V at a rate of 300 liters per second and that TWICE as many bottles of Soda V as of Soda Q are filled at the factory each day. We''re asked for the ratio of the ...” March 2, 2019 Rich.C@EMPOWERgmat.com posted a reply to Two hoses are pouring water into an empty pool. Hose 1 alone in the Problem Solving forum “Hi All, This question is a variation of a ''Work Formula'' question (it involves 2 ''entities'' working on the same task together), so we can use the Work Formula to solve it. Work = (A)(B)/(A+B) where A and B are the individual times that it takes the 2 entities to complete the task on their ...” March 2, 2019 Rich.C@EMPOWERgmat.com posted a reply to Range Problem.,... in the Problem Solving forum “Hi All, We''re told that Set X consists of PRIME numbers {3, 11, 7, K, 17, 19}, the integer Y represents the PRODUCT of all elements in Set X and 11Y is an EVEN number. We''re asked for the RANGE of Set X. This question is based on several Number Property rules - and doesn''t actually require ...” March 2, 2019 Rich.C@EMPOWERgmat.com posted a reply to In how many ways can the letters D, I, G, I, T be arranged in the Problem Solving forum “Hi All, We''re asked to find the number of ways that the letters D, I, G, I, T be arranged so that the two I''s are NOT next to each other. Since the two "I"s cannot be side-by-side, there are a limited number of ways to arrange the 5 letters. As such, with a little permutation math ...” March 2, 2019 Rich.C@EMPOWERgmat.com posted a reply to The product of the digits of the four-digit number h is 36. in the Problem Solving forum “Hi All, We''re told that the product of the digits of the four-digit number H is 36 and no two digits of H are identical. We''re asked for the number of different possible values of H. While this question might seem complex, most of the work is based on basic Arithmetic (and some Permutation ...” March 1, 2019 Rich.C@EMPOWERgmat.com posted a reply to A motorcycle travels at a speed of x kilometers per p hours. in the Problem Solving forum “Hi All, We''re told that a motorcycle travels at a speed of X KILOMETERS per P HOURS. We''re asked for the number of METERS it will travel in S SECONDS, in terms of S, P and X. (xps ≠ 0; 1 kilometer = 1000 meters). This question can be solved in a number of different ways, including by TESTing ...” March 1, 2019 Rich.C@EMPOWERgmat.com posted a reply to All assets in Karina's investment portfolio are divided in the Problem Solving forum “Hi All, We''re told that all assets in Karina''s investment portfolio are divided between an IRA, 401k, and two separate taxable accounts and that NO two accounts have the SAME amount of money and all four have at least SOME money in them. If each account has a whole-number percent of Karina''s ...” March 1, 2019 Rich.C@EMPOWERgmat.com posted a reply to Vivian drives to her sister’s house and back. She takes th in the Problem Solving forum “Hi All, We''re told that Vivian drives to her sister''s house and back. She takes the exact same route both ways; on the trip out she drives an average speed of 50 miles per hour and on the trip back she drives an average speed of 70 miles per hour. We''re asked for her approximate average speed ...” March 1, 2019 Rich.C@EMPOWERgmat.com posted a reply to Tips for improving GMAT from 500-700 in the GMAT Strategy forum “Hi Rahufalb, To start, the only practical way to properly measure your overall Test-taking skills during the course of your studies is to take a FULL-LENGTH CAT under realistic conditions (meaning that you should take a FULL CAT - with the Essay and IR sections, in a location that is NOT your ...” March 1, 2019 Rich.C@EMPOWERgmat.com posted a reply to Materials for solving. in the GMAT Strategy forum “Hi Zaidf1997, It sounds like you''re just beginning your studies. Have you done any studying so far or are you just beginning? If you are just starting out, then it would be a good idea to take a FULL-LENGTH practice CAT Test; you can take 2 for free at www.mba.com (and they come with some ...” February 26, 2019 Rich.C@EMPOWERgmat.com posted a reply to Ten theater students are to begin work on a set for a in the Problem Solving forum “Hi All, We''re told that 10 theater students are to begin work on a set for a musical. Working at a constant rate, they will finish the set in 60 days, but the director of the musical decides they need to finish in 50 days. We''re asked for the number of ADDITIONAL theater students we would ...” February 24, 2019 Rich.C@EMPOWERgmat.com posted a reply to A circular lawn with a radius of 5 meters is surrounded by a in the Problem Solving forum “Hi All, We''re told that a circular lawn with a radius of 5 meters is surrounded by a circular walkway that is 4 meters wide. We''re asked for the area of the walkway. This is an example of a ''punch out'' question - we need to find the area of the ENTIRE shape and then ''punch out'' the part ...” February 24, 2019 Rich.C@EMPOWERgmat.com posted a reply to Kim has 40 percent more money than Sal and Sal has 20 in the Problem Solving forum “Hi All, We''re told that Kim has 40 percent MORE money than Sal, Sal has 20 percent LESS money than Phil and Sal and Phil have a combined total of$1.80. We''re asked for the amount of money that Kim has. This question can be approached in a couple of different ways, including some brute-force ...”
February 24, 2019
Rich.C@EMPOWERgmat.com posted a reply to Which of the following points is the intersection between in the Problem Solving forum
“Hi All, We''re asked which of the following points is the intersection between the lines y = 3x + 6 and y = -2x - 4. This question can be solved in a number of different ways, including by TESTing THE ANSWERS. Since we''re dealing with two lines - and we now that the two lines intersect - ...”
February 19, 2019
Rich.C@EMPOWERgmat.com posted a reply to A certain taxi company charges $3.10 for the first 1/5 of in the Problem Solving forum “Hi All, We''re told that a certain taxi company charges$3.10 for the first 1/5 of a mile plus $0.40 for each additional 1/5 of a mile. We''re asked for the total charge for a taxi ride that was 8 miles long? The prompt gives us the price per 1/5 of a mile for a taxi ride. It''s worth noting ...” February 19, 2019 Rich.C@EMPOWERgmat.com posted a reply to George bought a large electronic item with a 15% off coupon in the Problem Solving forum “Hi All, We''re told that George bought a large electronic item with a 15% off coupon and paid a total bill. When he got outside, he studied the receipt and realize that he mistakenly had been given DOUBLE the discount of the coupon, even though there was no double-coupon offer in effect that ...” February 19, 2019 Rich.C@EMPOWERgmat.com posted a reply to Working at their individual same constant rate, 24 machines in the Problem Solving forum “Hi All, We''re told that while working at their individual same constant rate, 24 machines can complete a certain production job in 10 hours when they all work together. However, on a certain day, due to minor malfunction, 8 of those machines were not operating for the first 2 hours. We''re ...” February 15, 2019 Rich.C@EMPOWERgmat.com posted a reply to If a positive integer q is divisible by both 3 and 11, then in the Problem Solving forum “Hi All, We''re told that Q is a positive integer that is divisible by BOTH 3 and 11. We''re asked which of the following MUST also divisible evenly into Q. This question can be approached in a couple of different ways, including by TESTing VALUES. With these types of prompts, it often helps ...” February 15, 2019 Rich.C@EMPOWERgmat.com posted a reply to During the four years that Mrs. Lopez owned her car, she fou in the Problem Solving forum “Hi All, We''re told that during the 4 years that Mrs. Lopez owned her car, she found that her total car expenses were$18,000. Fuel and maintenance costs accounted for 1/3 of the total and depreciation accounted for 3/5 of the REMAINDER. The cost of insurance was 3 times the cost of financing, ...”
February 10, 2019
Rich.C@EMPOWERgmat.com posted a reply to At Megalomania Industries, factory workers were paid $20 per in the Problem Solving forum “Hi All, We''re told that at Megalomania Industries, factory workers were paid$20 per hour in 1990 and $10 per hour in 2000 and the CEO of Megalomania Industries was paid$5 million per year in 1990 and $50 million per year in 2000. We''re asked for what percent greater was the percent increase ...” February 10, 2019 Rich.C@EMPOWERgmat.com posted a reply to A company’s four cars running 10 hrs a day consume 1200 lt in the Problem Solving forum “Hi All, We''re told that a company’s 4 cars running 10 hrs a day consume 1200 liters of fuel in 10 days. In the next 6 days, the company will need to run 9 cars for 12 hrs each so it rents 5 more cars which consume 20% less fuel than the company’s four cars. We''re asked for the number of ...” February 10, 2019 Rich.C@EMPOWERgmat.com posted a reply to 530 to 700 in 3 months- possible? best strategy/study plan? in the GMAT Strategy forum “Hi mgec0424, To start, a 520 is a decent initial CAT Score (the average Score on the Official GMAT hovers around 550 most years). Scoring 530 on your second CAT isn''t necessary a ''bad'' thing either - since it takes time to properly use what you''ve learn and adapt your approach to the overall ...” February 8, 2019 Rich.C@EMPOWERgmat.com posted a reply to Ten telegenic contestants with a variety of personality diso in the Problem Solving forum “Hi All, For Test Takers who know the Combination Formula, this question is a fairly straight-forward prompt. If you DON''T know the Combination Formula though, then here''s what it is and how to use it. Any time a prompt asks for "groups" or "combinations" of things, then the ...” February 7, 2019 Rich.C@EMPOWERgmat.com posted a reply to The sides of a right triangle are consecutive even integers, in the Problem Solving forum “Hi All, We''re told that the sides of a right triangle are CONSECUTIVE EVEN INTEGERS, and the length of the LONGEST side is P. We''re asked which of the following equations could be used to find P. This question can be solved in a couple of different ways, including by TESTing VALUES. To ...” February 7, 2019 Rich.C@EMPOWERgmat.com posted a reply to There are 13 hearts in a full deck of 52 cards. In a certain in the Problem Solving forum “Hi All, The probability of pulling a heart out of a full deck of cards is 13/52 = 1/4, so the probability of NOT pulling a heart out of a full deck = 1 - 1/4 = 3/4. The probability of pulling a heart on the THIRD try, and NOT pulling a heart on the first two tries is: (3/4)(3/4)(1/4) = ...” February 7, 2019 Rich.C@EMPOWERgmat.com posted a reply to Starting with 0, a mathematician labels every non-negative i in the Problem Solving forum “Hi All, We''re told that starting with 0, a mathematician labels every non-negative integer as one of five types: alpha, beta, gamma, delta, or epsilon, in that repeating order as the integers increase. For instance, the integer 8 is labeled delta. We''re asked for the label on an integer that ...” February 7, 2019 Rich.C@EMPOWERgmat.com posted a reply to Three digits have been removed from each of the following in the Problem Solving forum “Hi All, We''re told that three digits have been removed from each of the following numbers and n = 25. We''re asked which of the numbers is equal to 3*2^(n-1). To start, the fact that three digits have been removed from each answer is irrelevant. When a GMAT question presents information ...” February 5, 2019 Rich.C@EMPOWERgmat.com posted a reply to The organizers of a conference offered a certain number of s in the Problem Solving forum “Hi All, We''re told that the organizers of a conference offered a certain number of simultaneous seminars with the intention that each seminar would be attended by 18 conference attendees. However, space limitations allowed only up to 15 conference attendees to participate in each of a number of ...” February 5, 2019 Rich.C@EMPOWERgmat.com posted a reply to At a school-wide athletic fair, five students won a combined in the Problem Solving forum “Hi All, We''re told that at a school-wide athletic fair, five students won a combined total of 20 ribbons, each of the five students won AT LEAST one ribbon and NO two students won the SAME number of ribbons. We''re asked for the greatest number of ribbons that the student with the ...” February 5, 2019 Rich.C@EMPOWERgmat.com posted a reply to In how many ways can a 4-letter word be formed from the in the Problem Solving forum “Hi regor60, I agree that this prompt is poorly-worded. The "intent" is to ask for every 4-letter arrangement that fits the given restrictions, INCLUDING "words" that do not appear in the dictionary (re: arrangements that are not actually words). GMAT question-writers are far ...” February 5, 2019 Rich.C@EMPOWERgmat.com posted a reply to In the coordinate plane, Line A has a slope of -1 and an in the Problem Solving forum “Hi All, We''re told that in the coordinate plane, Line A has a slope of -1 and an x-intercept of 1 and Line B has a slope of 2 and a y-intercept of -2. The two lines intersect at the point (a,b). We''re asked for the sum a and b. When dealing with lines, it often helps to write the given ...” February 5, 2019 Rich.C@EMPOWERgmat.com posted a reply to Work/Rate problem in the Problem Solving forum “Hi benjemin28, It''s worth noting that he Quant section of the GMAT is NOT a ''math test'' - it''s a ''critical thinking test'' that requires lots of little calculations as you work through it. Most GMAT questions are designed so that they can be solved in more than one way (and certain Tactics ...” February 4, 2019 Rich.C@EMPOWERgmat.com posted a reply to In a certain sock drawer, there are 4 pairs of black socks, in the Problem Solving forum “Hi All, The concept in these types of questions is based on the ''worst case scenario'' - to guarantee that something will happen, you have to focus on the ''extreme/longest'' way that it could happen. Here, we have 4 black socks, 3 gray socks and 2 orange socks. The question asks for the ...” February 4, 2019 Rich.C@EMPOWERgmat.com posted a reply to The original price of a certain TV set is discounted by x in the Problem Solving forum “Hi All, We''re told that the original price of a certain TV set is discounted by X percent, the reduced price is then discounted by 2X percent and P is the original price of the TV set. We''re asked which of the following represents the price of the television set after the two successive ...” February 4, 2019 Rich.C@EMPOWERgmat.com posted a reply to The value of (10^8-10^2)/(10^7-10^3) is closest to which in the Problem Solving forum “Hi All, We''re asked to choose the answer that is CLOSEST in value to (10^8-10^2)/(10^7-10^3). While you might be tempted to try lots of ''math steps'', if you consider how the answer choices are written, you can use a bit of estimation and logic to get to the correct answer without doing too ...” February 2, 2019 Rich.C@EMPOWERgmat.com posted a reply to A company produces baseball cards in equal numbers of regula in the Problem Solving forum “Hi All, We''re told that a company produces baseball cards in EQUAL numbers of regular packs of 16 and deluxe packs of 30. On a certain day, the company produces 241 cards. We''re asked for the SMALLEST number of additional cards the company needs to produce in order to maintain its regular ...” February 2, 2019 Rich.C@EMPOWERgmat.com posted a reply to If the probability of rain on any given day is 50%, what is in the Problem Solving forum “Hi All, We''re told that the probability of rain on any given day is 50%. We''re asked for the probability that it will rain on AT LEAST three days in a ROW during a five-day period. This question can be approached in a number of different ways; you might find it easiest to do a little math and ...” February 2, 2019 Rich.C@EMPOWERgmat.com posted a reply to Father John forms a choir from the church attendants. in the Problem Solving forum “Hi All, We''re told that Father John forms a choir from the church attendants. 30 people attend John''s church and the choir has 28 spots available, with one person as the lead singer. We''re asked for the number of different combinations for the choir. This question involves the Combination ...” February 2, 2019 Rich.C@EMPOWERgmat.com posted a reply to A scriptwriter charges$4 for every standard script, which in the Problem Solving forum
“Hi All, We''re told that a scriptwriter has a particular series of fees for a script (based on the length of the script). The scriptwriter charges.... 1) $4 for every standard script, which is 4 pages or shorter in length 2) 50 cents for every additional page 3) NO CHARGE for every 11th ...” February 2, 2019 Rich.C@EMPOWERgmat.com posted a reply to A paint crew gets a rush order to paint 80 houses in a new d in the Problem Solving forum “Hi All, We''re told that a paint crew gets a rush order to paint 80 houses in a new development. They paint the first Y houses at a rate of X houses per week. Realizing that they''ll be late at this rate, they bring in some more painters and paint the rest of the houses at the rate of 1.25X ...” February 1, 2019 Rich.C@EMPOWERgmat.com posted a reply to Two-thirds of the roads from A to B are at least 5 miles in the Problem Solving forum “Hi All, We''re told that 2/3 of the roads from A to B are at least 5 miles long, and 1/4 of the roads from B to C are at least 5 miles long. We''re asked to randomly pick a road from A to B and then randomly pick a road from B to C and determine the probability that AT LEAST ONE of the roads you ...” February 1, 2019 Rich.C@EMPOWERgmat.com posted a reply to Is tutoring necessary for Verbal? in the GMAT Strategy forum “Hi kyuhunl, The degree to which you might find tutoring useful will depend greatly on the study materials that you''re currently using and how quickly you can learn (and properly practice) certain concepts and Tactics. Before I can offer you the specific advice that you’re looking for, it ...” February 1, 2019 Rich.C@EMPOWERgmat.com posted a reply to Suppose we have six marbles: 3 blue marbles, 2 red marbles, in the Problem Solving forum “Hi All, We''re told that we have six marbles: 3 blue marbles, 2 red marbles, and one green marble - and that we are going to put them into three cups: a black cup, a white cup, and a purple cup. The only restriction is that the two red marbles CANNOT be in the same cup, meaning that we could put ...” January 31, 2019 Rich.C@EMPOWERgmat.com posted a reply to During a two-week period, the price of an ounce of silver in the Problem Solving forum “Hi All, We''re told that during a two-week period, the price of an ounce of silver INCREASED by 25 percent by the end of the first week and then DECREASED by 20 percent of this new price by the end of the second week. We''re asked, if the price of silver was X dollars per ounce at the beginning ...” January 31, 2019 Rich.C@EMPOWERgmat.com posted a reply to A doctor prescribed 18 cubic centimeters of a certain drug t in the Problem Solving forum “Hi All, This question is essentially about working through the necessary arithmetic. Thankfully, the math itself isn''t that tough, but you do have to stay organized to make sure that you''re setting up the proper calculations. We''re told that a typical dose of a drug is 2 cm^3 per 15 ...” January 31, 2019 Rich.C@EMPOWERgmat.com posted a reply to A metal company's old machine makes bolts at a constant rate in the Problem Solving forum “Hi All, The answer choices to this question provide a fantastic shortcut. With the two machines that we''re given, we know that... Old Machine = 100 bolts/hour New Machine = 150 bolts/hour If they start at the same time, the two machines will create 250 bolts/hour The question asks ...” January 31, 2019 Rich.C@EMPOWERgmat.com posted a reply to A lecture course consists of 595 students. The students are in the Problem Solving forum “Hi All, We''re told that a lecture course consists of 595 students and that the students are to be divided into discussion sections, each with an EQUAL number of students. We''re asked which of the following CANNOT be the number of students in a discussion section. This question is really just ...” January 31, 2019 Rich.C@EMPOWERgmat.com posted a reply to What is the greatest prime factor of 3^6 - 1? in the Problem Solving forum “Hi All, A number of the posts have provided elegant solutions to this question. The basic math behind this prompt is Arithmetic and Prime Factorization though, so if you don''t immediately "see" the elegant approach, you can still get to the answer.... We''re asked to find the ...” January 31, 2019 Rich.C@EMPOWERgmat.com posted a reply to A new tower has just been built at the Verbico military in the Problem Solving forum “Hi j_shreyans, I''m a big fan of TESTing Values (Mitch''s explanation), but this question can also be solved with algebra…. We''re told that adding a new tower to an existing hospital allows fore 3 times the number of available beds that were there before the tower was built: Just the ...” January 28, 2019 Rich.C@EMPOWERgmat.com posted a reply to A certain company has 18 equally qualified applicants for 4 in the Problem Solving forum “Hi All, We''re told that a certain company has 18 equally qualified applicants for 4 open positions. We''re asked for the number of different groups of 4 applicants that can be chosen by the company to fill the positions if the order of selection does not matter. This question is a fairly ...” January 28, 2019 Rich.C@EMPOWERgmat.com posted a reply to When 12 marbles are added to a rectangular aquarium, the wat in the Problem Solving forum “Hi All, We''re told that when 12 marbles are added to a rectangular aquarium, the water in the aquarium rises 1 1/2 inches. We''re asked how many marbles must be added to the aquarium in total to raise the water 2 3/4 inches. This question is ultimately about ratios, so you can approach the math ...” January 28, 2019 Rich.C@EMPOWERgmat.com posted a reply to A certain library assesses fines for overdue books as in the Problem Solving forum “Hi ALL, This question includes a ''conditional statement'' that effects how you''re supposed to handle each "step" in the math: "for each additional day....., the total fine is EITHER increased by 30 cents OR doubled, whichever results in the LESSER AMOUNT." Since ...” January 27, 2019 Rich.C@EMPOWERgmat.com posted a reply to Machines A and B, working together, take t minutes to in the Problem Solving forum “Hi All, We''re told that Machines A and B, working together, take T minutes to complete a particular work. Machine A, working alone, takes 64 minutes more than T to complete the same work. Machine B, working alone, takes 25 minutes more than T to complete the same work. We''re asked for the ...” January 27, 2019 Rich.C@EMPOWERgmat.com posted a reply to When 12 marbles are added to a rectangular aquarium, the in the Problem Solving forum “Hi All, We''re told that when 12 marbles are added to a rectangular aquarium, the water in the aquarium rises 1 1/2 inches. We''re asked how many marbles must be added to the aquarium in total to raise the water 2 3/4 inches. This question is ultimately about ratios, so you can approach the math ...” January 26, 2019 Rich.C@EMPOWERgmat.com posted a reply to Barbara invests$2400 in the National Bank at 5%. How much in the Problem Solving forum
“Hi All, We''re told that Barbara invests $2400 in the National Bank at 5%. We''re asked how much additional money she must invest at 8% so that the TOTAL annual income will be equal to 6% of her entire investment. This question can be approached in a number of different ways, including by ...” January 26, 2019 Rich.C@EMPOWERgmat.com posted a reply to Ratio in the Problem Solving forum “Hi All, We''re told that a in the first M games of a team´s season, the ratio of the team´s wins to its losses was 1:2 and in the subsequent N games, the ratio of the team´s wins to losses was 1:3. If M:N = 4:5, we''re asked for the ratio of the team´s wins to its losses for all M+N games. ...” January 25, 2019 Rich.C@EMPOWERgmat.com posted a reply to A major airplane manufacturer announced the sale of 150 in the Problem Solving forum “Hi All, We''re told that a major airplane manufacturer announced the sale of 150 small airliners at$125 million each, 75 medium sized airliners at $175 million each, and 60 large airliners at$220 million each. We''re asked for the percentage of the company''s income that came from large and ...”
January 25, 2019
Rich.C@EMPOWERgmat.com posted a reply to A miniature roulette wheel is divided into 10 equal sectors, in the Problem Solving forum
“Hi All, We''re told that a miniature roulette wheel is divided into 10 equal sectors, each bearing a distinct integer from 1 to 10, inclusive. Each time the wheel is spun, a ball randomly determines the winning sector by settling in that sector and the wheel is spun three times. We''re asked for ...”
January 24, 2019
Rich.C@EMPOWERgmat.com posted a reply to The total cost of a vacation was divided among 3 people. If in the Problem Solving forum
“Hi All, We''re told that the total cost of a vacation was divided equally among 3 people and that if the total cost of the vacation had been divided equally among 4 people, then the cost per person would have been $50 LESS. We''re asked for the total cost of the vacation. This question can be ...” January 24, 2019 Rich.C@EMPOWERgmat.com posted a reply to A shirt that costs k dollars is increased by 30%, then by an in the Problem Solving forum “Hi All, We''re told that the price of a shirt that costs K dollars is increased by 30%, then that price is increased by an additional 50%. We''re asked for the final price of the shirt in dollars, in terms of K. This question can be solved in a number of different ways - including Algebraically ...” January 24, 2019 Rich.C@EMPOWERgmat.com posted a reply to Getting out of a Rut: Overcoming 680 over 3 consecutive atte in the I just Beat The GMAT! forum “Hi markymarc89, That''s OUTSTANDING news! With a 740/Q50, you can comfortably apply to ANY Business Schools that interest you. Since you''ve already taken care of your applications, there''s not much else to do at this point (unless you want to consider applying to any additional Schools). We''re ...” January 23, 2019 Rich.C@EMPOWERgmat.com posted a reply to Of the votes cast on a certain proposal, 80 more were in in the Problem Solving forum “Hi All, We''re told that of the votes cast on a certain proposal, 80 MORE were in favor of the proposal than were against it and the number of votes against the proposal was 40 percent of the TOTAL vote. We''re asked for the total number of votes cast? (Each vote cast was either in favor of the ...” January 22, 2019 Rich.C@EMPOWERgmat.com posted a reply to Which of the following is closest to the value of (2^23) in the Problem Solving forum “Hi All, We''re asked which of the following is closest to the value of (2^23)(5^26). If you don''t immediately see the ''Exponent'' rules that apply to this question, then you can still solve it with some basic Arithmetic and logic. To start, when you multiply a bunch of numbers together, the ...” January 22, 2019 Rich.C@EMPOWERgmat.com posted a reply to The number 75 can be written as the sum of the squares of 3 in the Problem Solving forum “Hi All, This question can be solved with a bit of ''brute force'' arithmetic, but the speed with which you solve it will likely depend on how quickly you can write everything down and how you do the work. We''re asked to find the three positive integers, whose squares add up to 75. To start, ...” January 22, 2019 Rich.C@EMPOWERgmat.com posted a reply to If Sam were twice as old as he is, he would be 40 years in the Problem Solving forum “Hi All, We''re told that if Sam were TWICE as old as he is, then he would be 40 years older than Jim and that Jim is currently 10 years YOUNGER than Sam. We''re asked for Sam''s current age. This question can be solved in a couple of different ways, including by TESTing THE ANSWERS. Since the ...” January 20, 2019 Rich.C@EMPOWERgmat.com posted a reply to [x] denotes the least integer greater than or equal to x ... in the Problem Solving forum “Hi All, This is an example of a ''Symbolism'' question - the prompt ''makes up'' a math symbol, tells you what it means, then asks you to perform a calculation using it. When dealing with these types of symbols, it often helps to jot down a few examples, so that you understand the work that will ...” January 20, 2019 Rich.C@EMPOWERgmat.com posted a reply to On a game show, a contestant is given three keys, each of in the Problem Solving forum “Hi All, We''re told that on a game show, a contestant is given three keys, each which opens exactly one of three identical boxes. The first box contains$1, the second $100, and the third$1000. The contestant assigns each key to one of the boxes and wins the amount of money contained in any box ...”
January 20, 2019
Rich.C@EMPOWERgmat.com posted a reply to Danny and Ian are munching on a jar full of candies. Had in the Problem Solving forum
“Hi All, This question is essentially a "Work Formula" question, since it has 2 people working on a task together. You have to be really careful with the details though, since the two given rates are NOT for the same task.... We''re told that Danny can finish off the jar of candies in ...”
January 18, 2019
Rich.C@EMPOWERgmat.com posted a reply to A bus completed first 50 miles of a 120-mile trip at an in the Problem Solving forum
“Hi All, We''re told that a bus completed first 50 miles of a 120-mile trip at an average speed of 20 mph. Then it took a halt of 30 minutes and completed half of the remaining journey at an average speed of 35 mph. We''re asked for the average speed it should complete the REMAINING part of the ...”
January 18, 2019
Rich.C@EMPOWERgmat.com posted a reply to Three children, John, Paul, and Ringo, are playing a game. in the Problem Solving forum
“Hi All, We''re told that three children - John, Paul, and Ringo, are playing a game. Each child will choose either the number 1 or the number 2. When one child chooses a number DIFFERENT from those of the other two children, he is declared the winner. If all of the children choose the SAME ...”
January 18, 2019
Rich.C@EMPOWERgmat.com posted a reply to A will was written such that an estate would be divided amon in the Problem Solving forum
“Hi All, We''re told that a will was written such that an estate would be divided among FIVE beneficiaries with the remainder donated to charity, with one stipulation in the will is that no one beneficiary can receive an amount within 20% of another''s amount. One of the beneficiaries received ...”
January 18, 2019
Rich.C@EMPOWERgmat.com posted a reply to If Jake loses 8 pounds, he will weigh twice as much as his s in the Problem Solving forum
“Hi All, This question can be solved with fairly straight-forward Algebra (as some of the other solutions have proven). It can also be solved by TESTing THE ANSWERS and a bit of logic. We''re told that the total weight of Jake and his sister is 278 pounds. We''re also told that if Jake lost 8 ...”
January 18, 2019
Rich.C@EMPOWERgmat.com posted a reply to Need Suggestion on books in the GMAT Strategy forum
“Hi JOHNMC, Raising a 430 to the point that you could consistently score 700+ will likely require at least another 3 months of consistent, guided study - and you''ll have to make significant improvements to how you handle BOTH the Quant and Verbal sections. Thankfully, the GMAT is a consistent, ...”
January 18, 2019
Rich.C@EMPOWERgmat.com posted a reply to Mixture A is 15 percent alcohol, and mixture B is 50 percent in the Problem Solving forum
“Hi All, We''re told that Mixture A is 15 percent alcohol and mixture B is 50 percent alcohol and when a certain amount of each is poured together to create a 4-gallon mixture, the result contains 30 percent alcohol. We''re asked approximately how many gallons of mixture A are in the mixture. ...”
January 16, 2019
Rich.C@EMPOWERgmat.com posted a reply to Which of the following equations represents a line in the Problem Solving forum
“Hi All, We''re asked which of the 5 answers is the equation for a line that is perpendicular to line K in the figure above. This question is based on line/graphing rules. To start, a PERPENDICULAR line is one that has an "opposite inverse" slope (sometime called a "negative ...”
January 16, 2019
Rich.C@EMPOWERgmat.com posted a reply to If a certain concrete mixture contains gravel, water, and in the Problem Solving forum
“Hi All, We''re told that a certain concrete mixture contains gravel, water, and sand in a ratio of 1 to 3 to 5 by weight. We''re asked for the number of pounds of gravel that would be needed to produce 72 pounds of the mixture. This math behind this question can be approached in a number of ...”
January 16, 2019
Rich.C@EMPOWERgmat.com posted a reply to Need Suggestion on books in the GMAT Strategy forum
“Hi JOHNMC, Since it sounds like you''re just beginning your studies, then it would be a good idea to take a FULL-LENGTH practice CAT Test; you can take 2 for free at www.mba.com (and they come with some additional practice materials). If you want to do a little studying first, so that you can ...”
January 16, 2019
Rich.C@EMPOWERgmat.com posted a reply to In a 200 member association consisting of men and women, exa in the Problem Solving forum
“Hi All, We''re told that in a 200 member association consisting of men and women, exactly 20% of men and exactly 25 % women are homeowners. We''re asked for the LEAST number of members who are homeowners. This question is built around a couple of Number Properties - and to MINIMIZE the number of ...”
January 15, 2019
Rich.C@EMPOWERgmat.com posted a reply to Roger wants to arrange three of his five books on his in the Problem Solving forum
“Hi All, We''re told that Roger wants to arrange three of his five books on his bookshelf, but two of the five books are duplicates and cannot both be selected. We''re asked for the number different ways that Roger can arrange his books. The wording of this question is a bit ''quirky'', but the ...”
January 15, 2019
Rich.C@EMPOWERgmat.com posted a reply to Probability question in the Problem Solving forum
“Hi yenngoc2409, I''m going to give you a hint so that you can adjust your calculation. Your result is too high because you have not accounted for the ''duplicate'' entries. For example, if the 4 cards were 2233, then you have an option that has two pair... but you also have two of the options ...”
January 14, 2019
Rich.C@EMPOWERgmat.com posted a reply to CARS in the Problem Solving forum
“Hi All, We''re told that the number of defects in the first five cars to come through a new production line are 9, 7, 10, 4, and 6, respectively and that the sixth car through the production line has either 3, 7, or 12 defects. We''re asked which of the following three values does the MEAN ...”
January 13, 2019
Rich.C@EMPOWERgmat.com posted a reply to GMAT Help Required.. 4 months to go.. diag 540 (38/27) in the GMAT Strategy forum
“Hi amg0410, To start, a 540 is a solid initial CAT Score (the average Score on the Official GMAT hovers around 550 most years). Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on your timeline and your goals: ...”
January 13, 2019
Rich.C@EMPOWERgmat.com posted a reply to Carlos runs a lap around the track in x seconds. His second in the Problem Solving forum
“Hi All, We''re told that Carlos runs a lap around the track in X SECONDS. His second lap is five SECONDS SLOWER than the first lap, but the third lap is two SECONDS FASTER than the first lap. We''re asked for Carlos’s average (arithmetic mean) number of MINUTES per LAP, in terms of X. This ...”
January 12, 2019
Rich.C@EMPOWERgmat.com posted a reply to Patricia builds two triangles, each with 30 feet of wood. in the Problem Solving forum
“Hi All, We''re told that Patricia builds two triangles, EACH with 30 feet of wood. The first triangle ABC is built to maximize the LENGTH of the BASE side. The second triangle DEF is built to maximize the AREA of the triangle. In addition, the lengths of all line segments are INTEGERS. We''re ...”
January 12, 2019
Rich.C@EMPOWERgmat.com posted a reply to I took the GMAT today in the GMAT Strategy forum
“Hi mbaorbust3, I''m sorry to hear that Test Day did not go as well as hoped. Business Schools generally don''t care if you retake the GMAT though, so you have little to worry about in that regard. Before we can discuss how you might improve this next phase of your studies, it would help if you ...”
January 12, 2019
Rich.C@EMPOWERgmat.com posted a reply to In a certain bathtub, both the hot and cold water fixtures in the Problem Solving forum
“Hi All, We''re told that In a certain bathtub, both the hot and cold water fixtures leak. The cold water leak alone would fill an empty bucket in C hours, and the hot water leak alone will fill the same bucket in H hours, where C < H. If both fixtures began to leak at the same time into the ...”
January 11, 2019
Rich.C@EMPOWERgmat.com posted a reply to The following tables show the revenues and costs, in in the Problem Solving forum
“Hi All, We''re told that Profit = Revenue - Costs and that costs will remain constant from 2007 to 2008, while revenues INCREASE by 10% in that same period. We''re asked for the percent increase in PROFITS from 2007 to 2008. This question comes down to some Arithmetic and the Percentage Change ...”
January 11, 2019
Rich.C@EMPOWERgmat.com posted a reply to A class consists of 12 girls and 20 boys. One quarter of the in the Problem Solving forum
“Hi All, We''re told that a class consists of 12 girls and 20 boys. One-quarter of the girls in the class have blue eyes. We''re asked for the probability that a randomly selected child is a girl who does NOT have blue eyes. This question comes down to some basic organization and Arithmetic. ...”
January 11, 2019
Rich.C@EMPOWERgmat.com posted a reply to Guidance on study plan in the GMAT Strategy forum
“Hi szhao, To start, a 730 initial Score is an outstanding performance (the average Score on the Official GMAT hovers around 550 most years), so you''re clearly a strong critical thinker. Focusing on the GMAT now - years before you will actually need your Score - is also a smart choice. Since ...”
January 11, 2019
Rich.C@EMPOWERgmat.com posted a reply to The price of a phone call consists of a standard connection in the Problem Solving forum
“Hi All, We''re told that the price of a phone call consists of a standard connection fee, which is constant, plus a per minute charge, a 10-minute call costs $2.90 and a 16-minute call costs$4.40. We''re asked for the cost of a 13-minute call. This question can be solved in a couple of ...”
January 10, 2019
Rich.C@EMPOWERgmat.com posted a reply to This year, x people won an Olympic medal for water in the Problem Solving forum
“Hi All, This question can be solved by TESTing VALUES (and taking a few notes). We''re told that X people won a medal for water competitions. Of those X people, 1/3 won a medal for swimming; of those who won a medal for SWIMMING, 1/4 also won a medal for diving. The common denominator ...”
January 10, 2019
Rich.C@EMPOWERgmat.com posted a reply to How many integers between in the Problem Solving forum
“Hi All, This question is essentially about arithmetic and taking the proper notes. You can go about the math steps in a couple of different ways though - depending on how you ''see'' this information. From the prompt, we know that the farmer spent $35 on feed.... 40% of his money on chicken ...” January 10, 2019 Rich.C@EMPOWERgmat.com posted a reply to Stock - Number of shares V ------------------- 68 W ------- in the Problem Solving forum “Hi All, "Range" questions come from the broader category of statistics, which will show up a couple of times on the GMAT. The range of a group of numbers is the difference between the largest number and the smallest number. Based on the original number of shares, the range would ...” January 10, 2019 Rich.C@EMPOWERgmat.com posted a reply to The water from one outlet, flowing at a constant rate, can f in the Problem Solving forum “Hi All, This question is a standard "Work Formula" question. When you have 2 entities sharing a task, you can use the following formula to figure out how long it takes for the 2 entities to complete the task together. Work = (A)(B)/(A+B) where A and B are the individual times ...” January 10, 2019 Rich.C@EMPOWERgmat.com posted a reply to The architects of a certain type of building estimate in the Problem Solving forum “Hi All, We''re told that the architects of a certain type of building estimate construction costs to be$2.0 million per floor for each of the first 5 floors, $2.5 million per floor for each of the next 3 floors, and$3.5 million per floor for any additional floors. We''re asked what the ...”
January 10, 2019
Rich.C@EMPOWERgmat.com posted a reply to Sumanta needs to type up her 1950-word paper by its 5 pm in the Problem Solving forum
“Hi All, This question can be solved by TESTing THE ANSWERS. This is essentially a rate question, but the rate (and the time spent at that rate) changes depending on what time Rachel begins typing. Based on the information in the prompt, we know that if Rachel begins typing at 3pm, then she ...”
January 8, 2019
Rich.C@EMPOWERgmat.com posted a reply to In the first round of the elections, the only two candidates in the Problem Solving forum
“Hi All, We''re told that in the first round of the elections, the only two candidates got exactly the SAME number of votes and during the second round, 15,000 votes switched from the first candidate to the second one. We''re also told that the total number of votes remained the same in both ...”
January 8, 2019
Rich.C@EMPOWERgmat.com posted a reply to What is the value of 25*8÷50÷2 in the Problem Solving forum
“Hi All, We''re asked for the value of 25*8÷50÷2. This question involves rules called "Order of Operations", but as long as you know those rules, the work here isn''t too difficult. In Order of Operations, both multiplication and division are on the same ''level'' (meaning that you ...”
January 8, 2019
Rich.C@EMPOWERgmat.com posted a reply to HELP!!! Very POOR VERBAL score. in the Suggestions and Feedback forum
“Hi Linda, Training to score at a high level on the GMAT often requires more than just ''weekend study'', so if you can put in a little study time during the week (even if it''s just an hour a day), then that would likely help you a great deal. As it stands, with a 580, you''re actually closer to ...”
January 8, 2019
Rich.C@EMPOWERgmat.com posted a reply to The main ingredient in a certain prescription drug capsule c in the Problem Solving forum
“Hi All, We''re told that the main ingredient in a certain prescription drug capsule cost $500 per kilogram. If each capsule contains 600 milligrams of ingredient, what is the cost of the ingredient in a capsule? (1 kilogram = 10^6 milligrams). This is a ''unit conversion'' question and comes ...” January 7, 2019 Rich.C@EMPOWERgmat.com posted a reply to After her birthday, Fiona had D dollars in gift money. in the Problem Solving forum “Hi VJesus12, We''re told that after her birthday, Fiona had D dollars in gift money. She spent 3/5 of this on an electric skateboard, then she spent 1/3 of what WAS LEFT on a movie passcard, and then finally put the last$80 in the bank. Assuming she made no other purchases with that money, ...”
January 6, 2019
Rich.C@EMPOWERgmat.com posted a reply to In the coordinate geometry plane, point A is the midpoint in the Problem Solving forum
“Hi VJesus12, This question can be solved with a bit of general graphing (you do not need to be hyper-accurate with your drawing to get the correct answer). To start, we''re told that in the coordinate geometry plane, Point A is the midpoint between points (5,8) and (-3, -2). Draw those two ...”
January 6, 2019
Rich.C@EMPOWERgmat.com posted a reply to In the figure above, an equilateral triangle is inscribed in the Problem Solving forum
“Hi VJesus12, We''re told that in the figure above, an EQUILATERAL triangle is inscribed in a circle and the arc bounded by adjacent corners of the triangle is between 4π and 6π long. We''re asked which of the following COULD be the diameter of the circle. As scary as this question might look, ...”
January 6, 2019
Rich.C@EMPOWERgmat.com posted a reply to Alice, Benjamin, and Carol each try independently to win a c in the Problem Solving forum
“Hi jain2016, Since we have the probabilities of each person winning a game, we can ''map out'' the 3 situations in which 2 of them win and 1 of them loses: A wins, B wins, C loses = (1/5)(3/8)(5/7) = 15/240 A wins, B loses, C wins = (1/5)(5/8)(2/7) = 10/240 A loses, B wins, C wins = ...”
January 4, 2019
Rich.C@EMPOWERgmat.com posted a reply to If y = 2 + 2K and y≠0y≠0, then 1/y + 1/y + 1/y + 1/y = ? in the Problem Solving forum
“Hi All, We''re told that Y = 2 + 2K and Y ≠ 0. We''re asked for the value of 1/Y + 1/Y + 1/Y + 1/Y. This question can be solved in a number of different ways, including by TESTing VALUES. Since we''re adding four fractions with the SAME denominator, we can just use some basic Arithmetic and ...”
January 4, 2019
Rich.C@EMPOWERgmat.com posted a reply to In a stack of boards at a lumber yard, the 20th board counti in the Problem Solving forum
“Hi All, Since the answers to the question are all numbers, we can use the answers ''against'' the prompt and TEST THE ANSWERS. Here''s how… Let''s start with Answer B. Answer B: 36 boards IF the number of boards was 36, then the 20th board from the top would be the 17th board from ...”
January 1, 2019
Rich.C@EMPOWERgmat.com posted a reply to In a 200 member association consisting of men and women, exa in the Problem Solving forum
“Hi All, We''re told that in a 200 member association consisting of men and women, exactly 20% of men and exactly 25 % women are homeowners. We''re asked for the LEAST number of members who are homeowners. This question is built around a couple of Number Properties - and to MINIMIZE the number of ...”
January 1, 2019
Rich.C@EMPOWERgmat.com posted a reply to A department store receives a shipment of 1,000 shirts, for in the Problem Solving forum
“Hi All, We''re told that a department store receives a shipment of 1,000 shirts, for which it pays $9,000. The store sells the shirts at a price 80 percent above cost for one month, after which it reduces the price of the shirts to 20 percent above cost. The store sells 75 percent of the shirts ...” January 1, 2019 Rich.C@EMPOWERgmat.com posted a reply to If it takes Jacob x hours to complete a project and it in the Problem Solving forum “Hi All, We''re told that it takes Jacob X hours to complete a project and it takes Mike Y hours to complete the same project. We''re asked for the number of hours it would take them to complete the project if they worked together. This is a great ''concept'' question; if you recognize the ...” December 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to The employees of Smith Enterprises received wage increases in the Problem Solving forum “Hi All, We''re told that the employees of Smith Enterprises received wage increases ranging from 30 cents to 87.5 cents per hour. We''re asked for the MAXIMUM wage increase for a 40-hour week. This question comes down to some basic arithmetic (but you might find it faster to do your math in a ...” December 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to Of the paintings that a certain artist created last year, th in the Problem Solving forum “Hi All, We''re told that of the paintings that a certain artist created last year, the number of paintings that were UNFRAMED was 5 times the number of paintings that were FRAMED and 48 percent of the UNFRAMED paintings and 30 percent of the FRAMED paintings were SOLD. We''re asked for the ...” December 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to Before expansion, a zoo had 343 birds in 7 cages. If, after in the Problem Solving forum “Hi All, We''re told that BEFORE expansion, a zoo had 343 birds in 7 cages and AFTER the expansion was complete, there were 719 birds in 11 cages. We''re asked for the approximate percent increase in the average number of birds per cage. This question is based around a couple of standard math ...” December 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to Scott takes a trip and drives 6 hours from Town X to Town Z in the Problem Solving forum “Hi All, We''re told that Scott takes a trip and drives 6 hours from Town X to Town Z at a rate of 50 miles per hour. On his way back, Scott drives 75 miles per hour and stops in Town Y which is MIDWAY between Town X and Town Z. We''re asked for the number of HOURS Scott takes to drive from Town ...” December 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to A merchant paid$300 for a shipment of x identical in the Problem Solving forum
“Hi All, The information in the prompt include a variety of nice ''round'' numbers, so it''s likely that the number of calculators in the shipment is also a round number AND divides evenly into 300. Only two of the answers ''fit'' that idea - 25 and 30, so let''s TEST THE ANSWERS and see if ...”
December 29, 2018
Rich.C@EMPOWERgmat.com posted a reply to Fred has a jarful of nickels, dimes, and quarters, in the ra in the Problem Solving forum
“Hi All, We''re told that Fred has a jarful of nickels, dimes, and quarters, in the ratio of 2:5:10, respectively and the total value of these coins is $15.50. We''re asked for the number of DIMES in Fred’s jar. This question is based on ratio rules - and ratios are all about multiples - so you ...” December 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to A certain bank uses the formula above to approximate the in the Problem Solving forum “Hi All, We''re asked for the mathematical equivalent of the following formula: $$R=\frac{\frac{24F}{N}}{P+\frac{A}{12}}$$ While the prompt (and the answers) might look ''complex'', the work involved is based on a simple math premise (common denominators), so as long as you are thorough ...” December 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the largest value of non-negative integer N for in the Problem Solving forum “Hi All, We''re asked for the largest value of N for which 10^N is a factor of 50! This question comes down to ''prime factorization'' and requires a degree of thoroughness on your part (to make sure that you find all of the 10s in 50!) To start, 50! = (50)(49)(48)(47)(46)(45).....(3)(2)(1), ...” December 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to A retailer sells pashminas at a ten percent discount. If a in the Problem Solving forum “Hi All, We''re told that a retailer sells pashminas at a ten percent discount, a pashmina COST him$75 and he wants to make a profit of no less than twenty percent on the COST (after the discount). We''re asked for the minimum tag price he needs to put on a pashmina. To start, this question ...”
December 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to HELP!!! Very POOR VERBAL score. in the Suggestions and Feedback forum
“Hi Linda, Many Test Takers spend 3 months (or more) of consistent study time before they hit their ''peak'' scores, so you shouldn''t feel too down about this performance if you studied for just 6 weeks (and primarily just on the weekends). Thankfully, the GMAT is a consistent, predictable Exam, ...”
December 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to A set of 15 different integers has median of 25 and a range in the Problem Solving forum
“Hi All, When it comes to maximizing or minimizing a value in a group of numbers, you have to think about what the other numbers would need to be to accomplish your goal. Here, we have a group of 15 DISTINCT (meaning DIFFERENT) integers with a median of 25 and a RANGE of 25. That range will ...”
December 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain punch contains grape juice, orange juice, and in the Problem Solving forum
“Hi All, We''re told that a certain punch contains grape juice, orange juice, and pineapple juice and no other ingredients in a ratio of 2:3:7 respectively and a bowl contains 156 total ounces of this punch. We''re asked for the number of ounces of grape juice in the punch. This question can be ...”
December 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to The sum of the weekly salaries of 5 employees is $3,250. If in the Problem Solving forum “Hi All, We''re told that the SUM of the weekly salaries of 5 employees is$3,250 and that each of the 5 salaries is to increase by 10 percent. We''re asked for the AVERAGE increase in weekly salary per employee. This question ultimately comes down to working through some arithmetic, but ...”
December 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to 90 Day Flexible Plan for a decent verbal/low quant old score in the GMAT Strategy forum
“Hi LDCross, For free math practice and help, I recommend that you set up an account at Khan Academy (www.khanacademy.org). The site is completely free and makes the learning a bit more fun and ''game-like'' (as opposed to the dry academic approach taken by most books). While the site is vast, ...”
December 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to A plane traveled k miles in its first 96 minutes of flight in the Problem Solving forum
“Hi All, We''re told that a plane traveled K miles in its first 96 minutes of flight time and it completed the remaining 300 miles of the trip in T minutes. We''re asked for the average speed of the plane, in miles per hour, for the entire trip. This question can be solved by TESTing VALUES. ...”
December 23, 2018
Rich.C@EMPOWERgmat.com posted a reply to A scientist has 400 units of a 6% phosphoric acid solution, in the Problem Solving forum
“Hi All, While an Algebra approach (using the "weighted average" formula) would work nicely on this prompt, you can also answer it rather quickly by TESTing THE ANSWERS and using a bit of logic. Here, we''re going to mix 400 ounces of a 6% acid solution with X ounces of a 12% acid ...”
December 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to Two water pumps, working simultaneously at their respective in the Problem Solving forum
“Hi All, This is an example of a Work Formula question. Any time you have two entities (people, machines, water pumps, etc.) working on a job together, you can use the following formula: (AB)/(A+B) = Total time to do the job together Here, we''re told that the total time = 4 hours and ...”
December 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to Two trees have a combined height of 60 feet, and the taller in the Problem Solving forum
“Hi All, We''re told that two trees have a combined height of 60 feet and the taller tree is X times the height of the shorter tree. We''re asked to find the height of the shorter tree in terms of X. This question can be approached in a couple of different ways, including by TESTing VALUES. IF ...”
December 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain company charges $6 per package to ship packages in the Problem Solving forum “Hi All, We''re told that a certain company charges$6 per package to ship packages weighing less than 2 pounds each. However, for a package weighing 2 pounds or more, the company charges an initial fee of $6 plus$2 per pound. We''re told that a certain package cost $38 to ship. We''re asked for ...” December 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to One woman and one man can build a wall together in two hours in the Problem Solving forum “Hi All, Each of the other explanations explains the ''math'' behind this prompt, so I won''t rehash any of that here. Instead, I want to talk about the ''patterns'' behind this question, and how you can answer it without doing much math at all. To start, we have to sort through a lot of ...” December 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to Before being simplified, the instructions for computing in the Problem Solving forum “Hi All, This question can be solved by TESTing VALUES. I''m going to use the variable "J" instead of an "I" (since that might be mistaken for the number 1)... We''re told to add "2% of one''s income" to "the average of 100 and 1% of one''s income" ...” December 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to At the Trenchard Oaks apartment complex, a two-bedroom apart in the Problem Solving forum “Hi All, We''re told that a two-bedroom apartment costs 50% more to rent than a one-bedroom apartment. If Alex were to rent a two-bedroom apartment for X months it would cost him the same amount as it would to rent a one-bedroom for 12 months. We''re asked for the value of X. This question can be ...” December 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to 90 Day Flexible Plan for a decent verbal/low quant old score in the GMAT Strategy forum “Hi LDCross, This 610 is a strong initial CAT Score (the average Score on the Official GMAT hovers around 550 most years) - and your Verbal Scaled Score is fantastic. As such, you might just need to put the proper focus/effort into building up your Quant knowledge and learning/practicing the ...” December 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to In the set of positive integers from 1 to 500, what is the s in the Problem Solving forum “Hi All, We''re asked for the sum of all the ODD multiples of 5 from 1 to 500. This question is essentially about Arithmetic and can be solved with ''bunching.'' There are 100 multiples of 5 between 1 and 500: 1(5)..... (100)(5), but the question asks for only the ODD multiples of 5 (meaning ...” December 18, 2018 Rich.C@EMPOWERgmat.com posted a reply to Seven students are trying out for the school soccer team, on in the Problem Solving forum “Hi alanforde800Maximus, This question uses what''s called "Formal Logic" (a concept that you would see repeatedly on the LSAT, but rarely on the GMAT). You can answer it with some drawings and careful note-taking. Based on the information in the prompt, we have seven players ...” December 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to Pam and Robin each roll a pair of fair, six-sided dice. What in the Problem Solving forum “Hi alanforde800Maximus, This is a tougher probability question than average (and you likely will not see this exact situation on Test Day). This is meant to say that you shouldn''t be too concerned about this prompt until you''re picking up points in all the other ''gettable'' areas first. ...” December 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to If every boy in a kindergarten class buys a soda and every g in the Problem Solving forum “Hi alanforde800Maximus, This is a thick, layered question, and would likely take most Test Takers more time than average to solve correctly. The key to solving it is to realize that we don''t know the prices of each soda and each juice box - they MIGHT be integers, but they MIGHT NOT. Also, we ...” December 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to Post-First Exam: What are my next steps? in the GMAT Strategy forum “Hi andyaf, In your prior posts, you did not offer much information about your overall goals (other than that your Goal Score was 750+). Before I can offer you any additional advice, it would help if you could provide a bit more information on your timeline and your goals: 1) Is your Goal ...” December 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to 90 Day Flexible Plan for a decent verbal/low quant old score in the GMAT Strategy forum “Hi LDCross, Earlier this year, GMAC made a formal announcement defining some changes that would be taking place to the format of the Official GMAT (which began April 16, 2018). These changes primarily impact the overall length of the Exam (meaning the number of questions in the Quant and Verbal ...” December 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to In 1991, the price of a house was 80% of its original price. in the Problem Solving forum “Hi All, We''re told that in 1991, the price of a house was 80% of its original price and in 1992, the price of the house was 60% of its original price. We''re asked by what percent the price of the house decreased from 1991 to 1992. This question can be solved in a couple of different ways, ...” December 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to A mathematician has devised a formula that produces a series in the Problem Solving forum “Hi All, In this question, we''re given the ''rules'' for a particular sequence. We have the values of the first 3 terms and instructions for how to calculate each term afterwards (re: the 4th term is the sum of TWICE the term before it and the term ''2 terms'' before it - re: 2(3rd term) + 2nd ...” December 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to Each Machine of type A has 3 steel parts and 2 chrome parts. in the Problem Solving forum “Hi All, We''re told that each Machine of type A has 3 steel parts and 2 chrome parts, each machine of type B has 4 steel parts and 7 chrome parts and a certain group of type A and type B machines has a total of 20 steel parts and 22 chrome parts. We''re asked for the total number of machines. ...” December 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to The main ingredient in a certain prescription drug capsule in the Problem Solving forum “Hi All, We''re told that the main ingredient in a certain prescription drug capsule cost$500 per kilogram. If each capsule contains 600 milligrams of ingredient, what is the cost of the ingredient in a capsule? (1 kilogram = 10^6 milligrams). This is a ''unit conversion'' question and comes ...”
December 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to how to ace GMAT in the GMAT Strategy forum
“Hi Sana Mehra, Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on how you''ve been studying and your goals: Studies: 1) What type of study routine have you followed? How many hours do you typically study each ...”
December 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to Test day in the GMAT Strategy forum
December 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to Test day in the GMAT Strategy forum
“Hi Esteban, Is your Official Score in the ''competitive range'' of what those Schools are looking for? If it''s not, and you want to retest, then you''ll have to be really efficient with the time that you have remaining before the Round 2 application deadlines. You might choose to purchase ...”
December 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to If the ratio of the present age of Anna and Paula is 1 : 2, in the Problem Solving forum
“Hi All, We''re told that the ratio of Anna''s and Paula''s CURRENT ages is 1:2. We''re asked which of the following COULD have been the ratio of their respective ages 8 years ago. This question can be solved in a couple of different ways, including by ''brute force'' Arithmetic. Since we''re ...”
December 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to The table above shows the number of students in three clubs in the Problem Solving forum
“Hi All, 3-Group Overlapping Sets questions are relatively rare on the Official GMAT (you likely will NOT see this version of Overlapping Sets on Test Day). However, there is a formula that you can use to solve it. Total = (1st group) + (2nd group) + (3rd group) - (1st and 2nd) - (1st and ...”
December 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to Test day in the GMAT Strategy forum
“Hi Esteban, How did you Score (including the Quant and Verbal Scaled Scores)? And are you planning to apply soon (sometime in the next couple of months)? GMAT assassins aren''t born, they''re made, Rich”
December 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to Test day in the GMAT Strategy forum
“Hi Esteban, The Program has a searchable database, so you don''t have to memorize any codes for the Schools that you want to send your Official GMAT Score to. Is your Official Test Date coming up (and when are you scheduled to take the Test?)? GMAT assassins aren''t born, they''re made, Rich”
December 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to When 6 is multiplied by x, the result is the same as when x in the Problem Solving forum
“Hi All, We''re told that when 6 is multiplied by X, the result is the SAME as when X is added to 9. We''re asked for the value of X/3. When dealing with GMAT questions, it''s important to make sure that you answer the question that is ASKED. Here, we''re NOT asked for the value of X, we''re ...”
December 9, 2018
Rich.C@EMPOWERgmat.com posted a reply to During a special promotion, a certain filling station is off in the Problem Solving forum
“Hi All, We''re told that during a special promotion, a certain filling station is offering a 10 percent discount on gas purchased AFTER the first 10 gallons. Kim purchased 20 gallons of gas, and Isabella purchased 25 gallons of gas. We''re asked for Isabella''s total PER-GALLON DISCOUNT as a ...”
December 7, 2018
Rich.C@EMPOWERgmat.com posted a reply to 190 students go to a school bake sale. 95 buy a chocolate in the Problem Solving forum
“Hi All, We''re told that 190 students go to a school bake sale. Of those students, 95 buy a chocolate chip cookie, 75 buy a peanut butter cookie, and AT LEAST 12 buy both. We''re asked for the LEAST number of students who could have bought NEITHER type of cookie. This question is a variation on ...”
December 5, 2018
Rich.C@EMPOWERgmat.com posted a reply to What is the difference between the number of three-member in the Problem Solving forum
“Hi All, To start, I agree with Brent; the wording of this prompt is ''clunky'' - and the GMAT writers word their questions in a far more rigorous and specific fashion than what we see here. That having been said, the basic concepts involved here are Combinations and Permutations. We''re ...”
December 5, 2018
Rich.C@EMPOWERgmat.com posted a reply to Mr. McCall selects a number that is two-digit and positive. in the Problem Solving forum
“Hi All, We''re told that Mr. McCall selects a number that is two-digit and positive: If the number is prime, then he assigns that many problems for homework. If the number is NOT prime, then he assigns 8 MORE problems than the number for homework. We''re told he assigns 97 problems for homework. ...”
December 5, 2018
Rich.C@EMPOWERgmat.com posted a reply to If s and t are two different numbers on the number line, is in the Data Sufficiency forum
“Hi All, We''re told that S and T are two DIFFERENT numbers on the number line. We''re asked if S + T = 0. This is a YES/NO question and can be solved by TESTing VALUES and a bit of Number Property logic. 1) The distance between S and 0 is the SAME as the distance between T and 0 Since S ...”
December 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a certain company, 25% of the women and 17% of the men in the Data Sufficiency forum
“Hi All, This question involves some subtle Number Property rules that you have to consider to get the correct answer. Those rules, along with TESTing VALUES, can help you to quickly answer the question... We''re told that 25% of the women and 17% of the men participate in the voluntary equity ...”
December 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to In her position as a real estate agent, Sarah receives a bon in the Problem Solving forum
“Hi All, We''re told that Sarah receives a bonus for EACH sale she makes - and that last week, she earned a $4,000 bonus, which decreased her AVERAGE bonus amount to$4800 (which represents a decrease of 4%). We''re asked for the number of sales Sarah made. This question can be solved in a couple ...”
December 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to If x^3 < x^2, what is the value of the integer x? in the Data Sufficiency forum
“Hi All, We''re told that X is an INTEGER and X^3 is LESS than X^2. We''re asked for the value of X. This question can be solved with a mix of Number Properties and TESTing VALUES. To start, there are only certain types of values that will fit the given information that X^3 is less than X^2: ...”
December 3, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain company that sells only cars and trucks reported in the Problem Solving forum
“Hi All, We''re told that a certain company that sells only cars and trucks reported that revenues from car sales in 1997 were down 11 percent from 1996 and revenues from truck sales in 1997 were up 7 percent from 1996. If total revenues from car sales and trucks sales in 1997 were up 1 percent ...”
December 3, 2018
Rich.C@EMPOWERgmat.com posted a reply to Mary is building a pyramid out of stacked rows of soup cans. in the Problem Solving forum
“Hi All, We''re told that Mary is building a pyramid out of stacked rows of soup cans; the top row of the pyramid contains a single soup can, each row below the top row contains 6 MORE cans than the one above it and the completed pyramid contains 16 rows. We''re asked for the TOTAL number of soup ...”
December 3, 2018
Rich.C@EMPOWERgmat.com posted a reply to When running a mile during a recent track meet, Nuria was in the Problem Solving forum
“Hi All, We''re told that when running a mile during a recent track meet, Nuria was initially credited with a final time of 5 minutes, 44 seconds. Shortly after her run, officials realized that the timing mechanism malfunctioned. The stopwatch did not begin timing her until 11/25 of a MINUTE ...”
December 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to When a certain tree was first planted, it was 4 feet tall in the Problem Solving forum
“Hi All, TESTing the ANSWERS is a great way to tackle this question. The "fast" way to solve a problem can still sometimes take time, but regardless of how you approach a prompt, you still need to take notes and stay organized. From the screen capture, you chose answer C (1/2). If ...”
December 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to Portia purchased a laptop for $480, but after checking the in the Problem Solving forum “Hi All, We''re told that Portia purchased a laptop for$480, but after checking the merchant''s website realized that she had been overcharged by 20%. We''re asked how many dollars she was overcharged. This question can be solved in a couple of different ways, including by TESTing THE ANSWERS. ...”
December 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to Reggie purchased a car costing $8,700. As a down payment he in the Problem Solving forum “Hi All, We''re told that Reggie purchased a car costing$8,700 and as a down payment he used a $2,300 insurance settlement and an amount from his savings equal to 15 percent of the difference between the cost of the car and the insurance settlement. He borrowed the rest of the money needed to ...” November 30, 2018 Rich.C@EMPOWERgmat.com posted a reply to Of the employees at a company, 60 percent were men and, of in the Problem Solving forum “Hi swerve, We''re told that of the employees at a company, 60 percent were men and, of these, 1/10 were still employed after a recent corporate restructuring and the number of women who were still employed after the restructuring was FIVE TIMES the number of men who were employed after it. ...” November 30, 2018 Rich.C@EMPOWERgmat.com posted a reply to A box contains red and blue balls only. If there are 8 balls in the Data Sufficiency forum “Hi All, We''re told that a box contains red and blue balls only and that there are 8 balls in total. We''re asked for the number of RED balls are in the box. 1) If two balls are randomly selected without replacement, the probability that both balls are red is 5/14 To start, since we''re ...” November 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to Inequality in the Data Sufficiency forum “Hi All, We''re asked for the value of |X - 2|. This question comes down to a specific math concept (Absolute Value), some basic arithmetic and thoroughness on your part - meaning that you have to make sure that you answer the question that is ASKED. 1) |X - 4| = 2 Since we''re dealing ...” November 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to 3 Month Study Plan? in the GMAT Strategy forum “Hi intelligenthuman171, Since it sounds like you''re just beginning your studies, then it would be a good idea to take a FULL-LENGTH practice CAT Test; you can take 2 for free at www.mba.com (and they come with some additional practice materials). If you want to do a little studying first, so ...” November 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to If each of the two digits X and Y is distinct, is the two di in the Data Sufficiency forum “Hi All, We''re told that each of the two DIGITS X and Y is distinct. We''re asked if the two-digit integer XY is PRIME. This is a YES/NO question and can be solved by TESTing VALUES. 1) Each of the digits X and Y is the sum of 2 distinct single digit prime numbers. The single-digit ...” November 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to A casino pays players with chips that are either turquoise in the Data Sufficiency forum “Hi All, We''re told that a casino pays players with chips that are either turquoise- or violet- colored; each turquoise- colored chip is worth T dollars, and each violet- colored chip is worth V dollars, where T and V are INTEGERS. We''re asked for the combined value of four turquoise- colored ...” November 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to On a partly cloudy day, Derek decides to walk back from work in the Problem Solving forum “Hi All, This question can be solved by TESTing THE ANSWERS. To start, the prompt provides a few clues about why the speeds have to be 2 miles/hour and 3 miles/hour: 1) The two speeds are S miles/hour and (S+1) miles/hour, so the two numbers must differ by EXACTLY 1. 2) We''re told that S ...” November 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to 12 year out of college, GMAT study plans? in the GMAT Strategy forum “Hi KDR83, Your Essay and IR Scores are both nice achievements - but most Programs do much put much of a ''premium'' on either of those Scores (although depending on the number of applicants and the situation, it''s possible that those Scores could serve as ''tie breakers'' in your favor). I''d ...” November 28, 2018 Rich.C@EMPOWERgmat.com posted a reply to A company accountant estimates that airfares next year for in the Problem Solving forum “Hi All, We''re told that a company accountant estimates that airfares next year for business trips of a thousand miles or less will increase by 20 percent and airfares for all other business trips will increase by 10 percent. This year, total airfares for business trips of a thousand miles or ...” November 28, 2018 Rich.C@EMPOWERgmat.com posted a reply to An urn contains 10 balls, numbered from 1 to 10. If 2 balls in the Problem Solving forum “Hi All, We''re told that an urn contains 10 balls, numbered from 1 to 10 and we''re told that 2 balls are selected at random WITH replacement. We''re asked for the probability that the SUM of the 2 numbers on the balls will be EVEN. This question can be solved in a couple of different ways, ...” November 28, 2018 Rich.C@EMPOWERgmat.com posted a reply to In a group of 20 people, 5 of them belong to the golf club, in the Problem Solving forum “Hi All, 3-Group Overlapping Sets questions are relatively rare on the Official GMAT (you likely will NOT see this version of Overlapping Sets on Test Day). However, there is a formula that you can use to solve it. Total = (Those in none of the groups) + (1st group) + (2nd group) + (3rd ...” November 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to Between the first day of May and last day in June, the price in the Problem Solving forum “Hi All, We''re told that a between the first day of May and last day in June, the price per kilogram of Melange, a seasoning mix, first DECLINED by 20 percent and then INCREASED by 50 percent and during this same period, the price per liter of Blue, a spring water, first INCREASED by 20 percent ...” November 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to Bobby bought 2 shares, and which he sold for$96 each. If he in the Problem Solving forum
“Hi All, We''re told that Bobby bought 2 shares, which he sold for $96 each, he had a profit of 20% on the sale of one of the shares but a loss of 20% on the sale of the other share. We''re asked to find the TOTAL profit or loss on the sale of the two shares. This question essentially comes down ...” November 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Experience: 540 to 640 in one month in the I just Beat The GMAT! forum “Hi utdallas2019, That''s absolutely fantastic news! A 100-point improvement in such a short period of time is a terrific achievement - and since this 640 puts you well above your Goal Score, this sounds like a bit ''win'' overall! You clearly have a strong work ethic and capacity to improve, so I ...” November 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to In a certain state, gasoline stations compute the price per in the Problem Solving forum “Hi All, This question can be solved by TESTing VALUES. P = Price per gallon CHARGED D = Price per gallon for the Dealer We''re told that the Dealer price has a 4% tax AND 18 cents per gallon added on. So, I''m going to pick a nice round number for D. D =$10 P = $10 +4%($10) + ...”
November 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to At an auto detailing company, it takes 15 minutes for an in the Problem Solving forum
“Hi All, We''re told that at an auto detailing company, it takes 15 minutes for an employee to service a car and 24 minutes to service a truck and the company needs to service all 300 trucks and 360 cars on a lot during a 6-hour shift. We''re asked for the number of employees needed to complete ...”
November 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain recipe calls for 2 cups of sugar and 3 1/2 cups of in the Problem Solving forum
“Hi All, We''re told that a certain recipe calls for 2 cups of sugar and 3 1/2 cups of flour. We''re asked for the ratio of sugar to flour in this recipe. This question can be solved in a couple of different ways. The answer choices are sufficiently ''spread out'' that we can actually answer this ...”
November 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to A chili recipe calls for the final mixture to consist of 1/2 in the Problem Solving forum
“Hi vinni.k, We''re told that a chili recipe calls for the final mixture to consist of 1/2 meat and 1/3 beans, with the remainder an even mixture of sauce and various spices (and a total of 6 pounds of sauce and spices are used). We''re asked how many pounds of beans are used. This question can ...”
November 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMAT Mistake Tracker Tool from EMPOWERgmat in the GMAT Strategy forum
“Hi nnennaj, We''ve been unable to recreate the error that you are experiencing. One of our Engineers suggested that you might try using Apple Numbers. GMAT assassins aren''t born, they''re made, Rich”
November 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMAT Error Logs Suggestions and Feedback in the Suggestions and Feedback forum
“Hi nnennaj, We''ve been unable to recreate the error that you are experiencing. One of our Engineers suggested that you might try using Apple Numbers. GMAT assassins aren''t born, they''re made, Rich”
November 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to A retailer sells only radios and clocks. If she currently in the Problem Solving forum
“Hi All, We''re told that a retailer sells only radios and clocks and she currently has 44 total items in inventory. We''re asked how many of those items are radios. This question can be solved by TESTing VALUES. 1) The retailer has MORE than 28 radios in inventory. With 44 total items, ...”
November 23, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain telephone company offers two plans, A and B. Under in the Problem Solving forum
“Hi All, We''re told that a certain telephone company offers two plans, A and B. Under plan A, the company charges a total of $0.60 for the FIRST 7 minutes of each call and$0.06 per minute thereafter. Under plan B, the company charges $0.08 per minute of each call. We''re asked for the duration ...” November 23, 2018 Rich.C@EMPOWERgmat.com posted a reply to R and S can complete a certain job in 6 and 4 days respectiv in the Problem Solving forum “Hi All, We''re told that R and S can complete a certain job in 6 and 4 days respectively, while they work individually. We''re asked for the LEAST number of days they will take to complete the same job, if they work on alternate days. Although the wording of this question is a bit ''clunky'', ...” November 23, 2018 Rich.C@EMPOWERgmat.com posted a reply to Twelve identical machines, running continuously at the same in the Problem Solving forum “Hi All, We''re told that twelve identical machines, running continuously at the same constant rate, take 8 days to complete a shipment. We''re asked how many ADDITIONAL machines, each running at the same constant rate, would be needed to REDUCE the time required to complete a shipment BY two ...” November 23, 2018 Rich.C@EMPOWERgmat.com posted a reply to Gmat Journey... 690 - 640 -710 in the I just Beat The GMAT! forum “Hi gmat king, The other posts in this thread are over 5 years old, so you might not receive a response from any of the posters. If you''re looking to improve your GMAT Score, then I''ll be happy to analyze your situation/Scores. Before I can offer you the specific advice that you’re looking ...” November 22, 2018 Rich.C@EMPOWERgmat.com posted a reply to 30 Days to Improve My Score. Can it be done? in the GMAT Strategy forum “Hi clubber112358, To start, if you have taken any other practice CATs besides the two that you listed, then that information is important. If you''ve been scoring in the low-500s for some time, then it''s possible that you have gotten ''stuck'' at this particular score level - and your ''next ...” November 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to Help me Beat the GMAT in the I just Beat The GMAT! forum “Hi melisaaslan, I''m sorry to hear that Test Day didn''t go as well as planned. When these types of score drops occur, the two likely "causes" involve either something that was unrealistic during practice or something that was surprising (or not accounted for) on Test Day. If you can ...” November 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to 30 Days to Improve My Score. Can it be done? in the GMAT Strategy forum “Hi clubber112358, Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on how you''ve been studying and your goals: Studies: 1) What study materials have you used so far? 2) How have you scored on EACH of your CATs ...” November 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to How to Get a 700+ on the GMAT? in the I just Beat The GMAT! forum “Hi hitmanov, You should start a new post-thread (instead of piggy-backing on this one) and provide a bit more information on how you''ve been studying and your goals: https://www.beatthegmat.com/gmat-strategy-f3.html Click the orange "Create New Topic" Button above the forum ...” November 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to When m is divided by 7, the remainder is 5. When m is in the Problem Solving forum “Hi All, We''re told that when M is divided by 7, the remainder is 5, when M is divided by 13, the remainder is 6 and 1 < m < 200. We''re asked for the GREATEST possible value of M. This question can be solved rather easily by TESTing THE ANSWERS. Let''s TEST Answer E first (if it fits what ...” November 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to The number line above represents which of the following in the Problem Solving forum “Hi All, The given Number line shows us a set of numbers from -3 to +1, NOT inclusive. We can TEST VALUES against the 5 answer choices to find the answer that includes JUST that range of numbers... To start, both Answer A and Answer E include an open-ended range of values, so neither of those ...” November 19, 2018 Rich.C@EMPOWERgmat.com posted a reply to New to GMAT prep! Need help! in the GMAT Strategy forum “Hi pratj05, It''s been almost 2 weeks since your first post; have you done any studying since then (and if you have, then what materials have you used so far?)? The 730+ score is one that over 90% of Test Takers never achieve (regardless of how long they study or the number of times that they ...” November 19, 2018 Rich.C@EMPOWERgmat.com posted a reply to A chef mixes P ounces of 60% sugar solution with Q ounces of in the Data Sufficiency forum “Hi All, To start, you have to be very careful about your assumptions with this question. You will likely find that doing a little bit of extra work will help you to be sure that you have the correct answer. From the prompt, we know that we''re mixing P ounces of a 60% sugar solution with Q ounces ...” November 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to Can the positive integer p be expressed as the product of in the Data Sufficiency forum “Hi All, We''re told that P is a positive integer. We''re asked if P can be expressed as the PRODUCT of two integers, each of which is greater than 1. This is a YES/NO question can be be solved by TESTing VALUES. 1) 31 < p < 37 With the range given in Fact 1, P can only be 5 ...” November 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to If p is the sum of the reciprocals of the consecutive intege in the Problem Solving forum “Hi All, Based on the wording of the prompt, you might think that you should add up the fractions 1/91 + 1/92 + .... 1/100, but the GMAT would NEVER require that you do that math. Instead, lets do some real basic estimation of what that sum would be LESS than and GREATER than.... Note that we''re ...” November 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to A dealer originally bought 100 identical batteries at a tota in the Problem Solving forum “Hi All, We''re told that a dealer originally bought 100 identical batteries at a total cost of Q dollars and that each battery was sold at 50 percent above the original cost per battery. We''re asked for the amount, in dollars, that each battery was sold, in terms of Q. This question can also be ...” November 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to OG DS in the GMAT Math forum “Hi rashedhbs, To start, you would like receive more of a response if you make sure to post your questions in the proper forums. For example, the DS forum can be found here: https://www.beatthegmat.com/data-sufficiency-f7.html We''re told that 230 single-family homes that were BUILT in City ...” November 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to When a certain tree was first planted, it was 4 feet tall, in the Problem Solving forum “Hi All, TESTing the ANSWERS is a great way to tackle this question. The "fast" way to solve a problem can still sometimes take time, but regardless of how you approach a prompt, you still need to take notes and stay organized. From the screen capture, you chose answer C (1/2). If ...” November 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to A reatil appliance store priced a video recorder at 20 in the Problem Solving forum “Hi All, We''re told that a retail appliance store priced a video recorder at 20 percent above the wholesale cost of$200 and a store employee applied the 10 percent employee discount to the retail price to buy the recorder. We''re asked for the total price the employee paid for the recorder. The ...”
November 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a certain toy store, 20% of the international branded in the Problem Solving forum
“Hi swerve, We''re told that in a certain toy store, 20% of the INTERNATIONAL branded toys are the ONLY premium category toys and that premium toys make up 10% of the TOTAL number of toys in the store. We''re asked to find the percentage of toys in the store that are international brands. This ...”
November 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMAT retake in the GMAT Strategy forum
“Hi BHUPENDRA, First off, a 640/Q49 is a solid score (it''s right around the 70th percentile overall), so it could be enough to get you into your first-choice School. GMAC has publicly stated that the Official Score that you earn on Test Day is within +/- 30 points of actual ability. Assuming a ...”
November 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to Planning is in progress for a fenced, rectangular playground in the Problem Solving forum
“Hi All, While this prompt is wordy, the relevant facts are not too hard to pull out. We''re told that a rectangular playground will have an area of 1,600 square meters and we want to MINIMIZE the perimeter of the playground. We''re asked for the LENGTH of the playground under those ...”
November 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to At the Trenchard Oaks apartment complex, a two-bedroom in the Problem Solving forum
“Hi All, We''re told that a two-bedroom apartment costs 50% more to rent than a one-bedroom apartment. If Alex were to rent a two-bedroom apartment for X months it would cost him the same amount as it would to rent a one-bedroom for 12 months. We''re asked for the value of X. This question can be ...”
November 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to Is it possible to score a 700 in 30 days ? in the GMAT Strategy forum
“Hi anish_025, Have you taken the Official GMAT yet? If you have, then how did you Score (including the Quant and Verbal Scaled Scores)? Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on how you''ve been studying ...”
November 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a certain game, a large bag is filled with blue, green, in the Problem Solving forum
“Hi All, This question involves a bit of logical thinking and factoring skills. You have to take notes and stay organized though, if you want to answer this question correctly. We''re told: Blue chips = 1 point each Green chips = 5 points each Purple chips = X points each (more than ...”
November 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMAT Prep Experience with EMPOWERgmat in the I just Beat The GMAT! forum
“Hi Shubrat, That''s FANTASTIC news! With this 690, you can apply to any Schools that interest you (and it sounds as if this score puts you above the average Scores at the Programs that you''re considering - which is great news). I hope you reach out and let us know how your applications go. We ...”
November 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to retake gmat in the GMAT Strategy forum
“Hi Sarat, Studying 12 hours a day would probably be too much studying - and would likely lead to an increased chance of ''burning out'' before your Exam (and that is something that we want to avoid). If you want to study 6-8 hours a day, then that would probably be fine - but you must build in ...”
November 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to Self Study Materials - All Areas - 4 month preparation in the GMAT Strategy forum
“Hi Gopi, To start, a 570 is a strong ''baseline'' score (the average score on the Official GMAT hovers around 550 most years). You''ve also given yourself plenty of time to study - which is good. Given your Score Goal, you would likely find it beneficial to invest in a GMAT Course of some type ...”
November 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to Distance Problem in the Problem Solving forum
“Hi All, We''re told that A, B and C each drive 100-mile legs of a 300-mile course at speeds of 40, 50 and 60 miles per hour, respectively. We''re asked what FRACTION of the total drive time did A drive. This question can be solved in a couple of different ways; there''s actually a great ''ratio ...”
November 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to Paul sells encyclopedias door-to-door. He earns $160 on in the Problem Solving forum “Hi All, We''re told that Paul sells encyclopedias door-to-door. He earns$160 on every paycheck, regardless of how many sets he sells and a commission as follows: 10% on the first $10,000.00 and 5% for any additional sales beyond that. His largest paycheck of the year was$1,320. We''re ...”
November 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to On a wedding catering service, An experienced chef can in the Problem Solving forum
“Hi All, We''re told that on a wedding catering service, an experienced chef can prepare a service for a wedding in 8 hours while an novice chef would finish the preparations in 12 hours. If the catering service employs the SAME number of novice and experienced chefs, then how many chefs would it ...”
November 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMATPrep in the Problem Solving forum
“Hi All, We''re told that 3^(X) - 3^(X-1) = 162. We''re asked for the value of then (X)(X-1). This question can be solved rather easily with a bit of ''brute force'' arithmetic. Since we''re dealing with ''powers of 3'', let''s map out the first several values: 3^1 = 3 3^2 = 9 3^3 = 27 3^4 ...”
November 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to The ratio of the degree measures of the angles of a triangle in the Problem Solving forum
“Hi All, We''re told that the ratio of the degree measures of the angles of a triangle is 2:3:4. We''re asked which of the following is the sum of the degree measures of the SMALLEST and LARGEST angles. Since the ratio of the angles is 2:3:4, we can refer to those 3 angles as 2X, 3X and 4X, ...”
November 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to When Leo imported a certain item, he paid a 7 percent import in the Problem Solving forum
“Hi All, You can approach this question by TESTing THE ANSWERS. Instead of setting this up algebraically, you can use the ''spread'' of the answer choices to your advantage. Here, if the total value of the item were $2,000, then the tax would only apply to the amount over$1,000.... $1,000 x ...” November 13, 2018 Rich.C@EMPOWERgmat.com posted a reply to A chemical supply company has 60 liters of a 40% HNO3 in the Problem Solving forum “Hi swerve, We''re told that a chemical supply company has 60 liters of a 40% HNO3 solution. We''re asked for the number of liters of pure undiluted (meaning 100%) HNO3 the chemists must add so that the resultant solution is a 50% solution. This question is essentially a ''Weighted Average'' ...” November 13, 2018 Rich.C@EMPOWERgmat.com posted a reply to During the four years that Mrs. Lopez owned her car, she in the Problem Solving forum “Hi All, While this question IS wordy, the math behind it is just arithmetic. If you break the prompt into ''pieces'', then the work shouldn''t be too difficult. The first two sentences tell us that the total car expenses were$18,000, fuel and maintenance costs accounted for 1/3 of THAT total and ...”
November 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to 490 to 740, Verbal 45 - The GMAT Crush Fest in the I just Beat The GMAT! forum
“Hi clubber112358, You might find it useful to start your own post-thread (instead of piggy-backing on this one) and providing a more-detailed description of how you''ve been studying. If you would rather keep the discussion private, then you can feel free to PM or email me directly. Before I ...”
November 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to retake gmat in the GMAT Strategy forum
“Hi sarat0994, From what you have described, it sounds as if you worked through lots of practice questions, but it''s not clear whether you were actually practicing Tactics and training to take advantage of all of the built-in patterns that GMAT question-writers put into the Exam or not. Raising ...”
November 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to [ADVICE IS WELCOME!] Post GMAT Debrief in the GMAT Strategy forum
“Hi Leo, To start, since you have named some highly-competitive Schools, you would likely find it beneficial to speak with an Admissions Expert about your overall profile and application plans. There''s a Forum full of those Experts here: ...”
November 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to A gardener is going to plant 2 red rosebushes and 2 white in the Problem Solving forum
“Hi All, The math that''s required to answer this question can actually be done in a couple of different ways, depending on how you "see" probability questions. We''re given 2 red rosebushes (R1 and R2) and two white rosebushes (W1 and W2). We''re told to put these 4 rosebushes in a ...”
November 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to Veritas Prep: is it significantly harder than others? in the GMAT Strategy forum
“Hi baldururikson, The scoring algorithm on the Official GMAT is far more complicated than most people realize. Since that algorithm is proprietary, no GMAT company has an exact match for it, thus CAT scores can vary a bit based on the ''biases'' involved in their respective designs. The most ...”
November 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to 12 year out of college, GMAT study plans? in the GMAT Strategy forum
“Hi KDR83, First off, a 640 is a solid score (it''s right around the 70th percentile overall), so it could be enough to get you into your first-choice School. As such, a retest might not be necessary. Depending on the Schools that you plan to apply to, you would likely find it beneficial to speak ...”
November 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to Feel Demotivated in the The GMAT Avengers Study Group forum
“Hi Arun192097, Since this website is devoted to preparing for the GMAT and applying to Business School, we should focus on those areas of discussion. Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on how you''ve ...”
November 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to retake gmat in the GMAT Strategy forum
“Hi sarat0994, I''m sorry to hear that Test Day did not go as well as hoped. The ''swings'' in your practice CAT/mock Scores imply that you might have taken those Exams in an inconsistent fashion - and in ways that did not necessarily ''match up'' with what you faced on Test Day. Before we ...”
November 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to A post on a website gains a point if a user choose to in the Problem Solving forum
“Hi All, We''re told that a post on a website gains a point if a user chooses to upvote it and loses a point if a user chooses to downvote it and that a particular post has a total of 60 points (with 40% of the votes being downvotes). We''re asked for the total number of votes that have been cast ...”
November 2, 2018
Rich.C@EMPOWERgmat.com posted a reply to The hexagonal face of the in the Problem Solving forum
“Hi All, We''re told that the hexagonal face of the block shown in the figure above has sides of equal length and angles of equal measure and each lateral face is rectangular. We''re asked for the area, in square inches, of one lateral face. This question is based on a Geometry pattern - and if ...”
November 2, 2018
Rich.C@EMPOWERgmat.com posted a reply to Cars J and K are making the trip from City A to City B. in the Problem Solving forum
“Hi All, We''re told that Cars J and K are making the trip from City A to City B. Car J departs from City A 15 minutes AFTER Car K does, both cars travel along the same route and Car K travels at a constant speed that is 80% the constant speed of Car J. We''re asked for the number of MINUTES that ...”
November 2, 2018
Rich.C@EMPOWERgmat.com posted a reply to The figure above represents a rectangular garden bordered by in the Data Sufficiency forum
“Hi All, We''re told that the figure above represents a rectangular garden bordered by a walkway that has a uniform width of 3 feet. We''re asked for the PERIMETER of the garden. This question can be solved with a mix of Arithmetic and TESTing VALUES. 1) The outer perimeter of the walkway is ...”
October 29, 2018
Rich.C@EMPOWERgmat.com posted a reply to Economist Gmat Tutor review in the The GMAT Avengers Study Group forum
“Hi saurabh_sha, From your post, it sounds like you''re just starting out. Is that true? Have you done any studying for the GMAT so far? If you have, then what materials have you used and how have you scored on your practice CATs/mocks? If you''re just beginning, then it would be a good idea to ...”
October 29, 2018
Rich.C@EMPOWERgmat.com posted a reply to If a certain wheel turns at a constant rate of x revolutions in the Problem Solving forum
“Hi All, We''re told that a certain wheel turns at a constant rate of X revolutions per MINUTE. We''re asked for the number of revolutions that the wheel will make in K SECONDS. This question can be solved in a number of different ways, including by TESTing VALUES. IF.... X=2 and K=60... The ...”
October 29, 2018
Rich.C@EMPOWERgmat.com posted a reply to Jonah drove the first half of a 100-mile trip in x hours and in the Problem Solving forum
“Hi All, We''re told that Jonah drove the first half of a 100-mile trip in X hours and the second half in Y hours. We''re asked which of the following is equal to Jonah’s average speed, in miles per hour, for the entire trip. This question can be solved in a couple of different ways, including ...”
October 29, 2018
Rich.C@EMPOWERgmat.com posted a reply to If a and b are integers such that a > b > 1, which of in the Problem Solving forum
“Hi All, We''re told that A and B are integers such that A > B > 1. We''re asked which of the following CANNOT be a multiple of either A or B. This question can be solved with some basic concept knowledge of the rules behind ''multiples.'' With the exception of "0", multiples ...”
October 29, 2018
Rich.C@EMPOWERgmat.com posted a reply to Both car A and car B set out from their original locations in the Problem Solving forum
“Hi All, We''re told that both car A and car B set out from their original locations at exactly the SAME time and on exactly the SAME route. Car A drives from Morse to Houston at an average speed of 65 miles per hour and Car B drives from Houston to Morse at 50 miles per hour, and then ...”
October 29, 2018
Rich.C@EMPOWERgmat.com posted a reply to The average age of a group of n people is 15 yrs. One more in the Problem Solving forum
“Hi All, We''re told that the average age of a group of N people is 15 yrs and when one more person aged 39 joins the group, the new average is 17 yrs. We''re asked for the value of N. This question can be solved in a number of different ways, including with a bit of ''number logic'' and a little ...”
October 29, 2018
Rich.C@EMPOWERgmat.com posted a reply to Cars J and K are making the trip from City A to City B. Car in the Problem Solving forum
“Hi All, We''re told that Cars J and K are making the trip from City A to City B. Car J departs from City A 15 minutes AFTER Car K does, both cars travel along the same route and Car K travels at a constant speed that is 80% the constant speed of Car J. We''re asked for the number of MINUTES that ...”
October 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to Carmelo and LeBron participate in a seven-person footrace on in the Problem Solving forum
“Hi All, We''re told that Carmelo and LeBron participate in a seven-person footrace on the basketball court during All-Star Weekend, all seven contestants finish and there are no ties. We''re asked for the number of different arrangements in which Carmelo defeats LeBron. This question is a ...”
October 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to What is the largest prime factor of the expression 3^8 − 2 in the Problem Solving forum
“Hi All, We''re asked to find the LARGEST prime factor of the expression 3^8 - 2^12. Certain Quant questions ultimately come down to ''rewriting'' information that you''ve been given. By rewriting 3^8 and 2^12 as "squared" terms, we''ll have a ''difference of squares'', which is a ...”
October 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMAT Retake?? in the I just Beat The GMAT! forum
“Hi GMAT_quest92, To start, a 710/Q50 is an outstanding score (it''s right around the 90th percentile overall), so you can comfortably apply to any Business Schools that interest you. Your question - in the broader sense - is about AFTER Business School though - so you might not find the exact ...”
October 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMAT with NO background in the GMAT Strategy forum
“Hi Rex, Studying for (and taking) the GMAT in the near-term - years before you might actually need it - is a really smart move. By focusing on the GMAT now, you can avoid the external pressure of a looming deadline and give yourself plenty of time to learn the content, patterns and little ...”
October 25, 2018
Rich.C@EMPOWERgmat.com posted a reply to Where is the registration offer?? in the Suggestions and Feedback forum
“Hi gmat800live, The current free Account that we offer through BeatTheGMAT is not for the full Course - it''s for some specific resources within the Course (including the Grammar Master Course). You can access the entire EMPOWERgmat Course for free through the free trial on our website though. ...”
October 25, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a certain company, the ratio of the number of manager to in the Problem Solving forum
“Hi swerve, We''re told that the ratio of the number of manager to the number of production-line workers is 5 to 72 - and IF 8 additional production-line workers were to be hired, then the ratio of the number of managers to the number of production-line workers would be 5 to 74. We''re asked for ...”
October 23, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMAT with NO background in the GMAT Strategy forum
“Hi Rex, Since it sounds like you''re just beginning your studies, then it would be a good idea to take a FULL-LENGTH practice CAT Test; you can take 2 for free at www.mba.com (and they come with some additional practice materials). If you want to do a little studying first, so that you can ...”
October 23, 2018
Rich.C@EMPOWERgmat.com posted a reply to Which CATs should I buy? MGMAT/Kaplan/Veritas....etc in the GMAT Strategy forum
“Hi omkarnikte, The scoring algorithm on the Official GMAT is far more complicated than most people realize. Since that algorithm is proprietary, no GMAT company has an exact match for it, thus CAT scores can vary a bit based on the ''biases'' involved in their respective designs. The most ...”
October 23, 2018
Rich.C@EMPOWERgmat.com posted a reply to Brian purchased a bouquet of 40 flowers for his mother for in the Problem Solving forum
“Hi All, We''re told that Brian purchased a bouquet of 40 flowers for his mother for her birthday; roses cost $1.50 each and tulips cost$1.00 each , and he spent $48 in total buying only those two types of flowers. We''re asked for the number of tulips that he bought. This question can be solved ...” October 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to At a constant speed of 72 kilometers per hour, a vehicle in the Problem Solving forum “Hi All, We''re told that a vehicles travels at a constant speed of 72 kilometers per HOUR. We''re asked what that speed is in kilometers per SECOND. This question is really just about ''unit conversions'', although at a certain point you can use the ''spread'' of the answer choices to your ...” October 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to There are between 100 and 110 cards in a collection of cards in the Problem Solving forum “Hi swerve, We''re told that there are between 100 and 110 cards in a collection of cards. If the cards are counted out 3 at a time, then there are 2 left over, but if they are counted out 4 at a time, then there is 1 left over. We''re asked for the total number of cards in the collection. This ...” October 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to Average of 4 practice test scores is 617; Can I cross 700? in the GMAT Strategy forum “Hi anmkgmat2018, GMAC has publicly stated that the Official Score that you earn on Test Day is within +/- 30 points of actual ability. Assuming a similar ''swing'' in how your CATs function, 3 of your last 4 CAT score results show that you essentially performed the same each time (about 600 +/- ...” October 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to In a certain math department, students are required to in the Problem Solving forum “Hi All, This question can be solved by TESTing VALUES and taking the proper notes. We''re told that there are two classes (Calculus and Trigonometry) and each is offered in beginner and advanced courses - and that each student is enrolled in just one course. The number of students enrolled in ...” October 19, 2018 Rich.C@EMPOWERgmat.com posted a reply to The rear wheels of a car crossed a certain line 0.5 second in the Problem Solving forum “Hi All, Since this question is wordy and the answers are somewhat "crazy"-looking, it''s possible that you might feel overwhelmed by this prompt. If you stay calm though and do the unit conversions properly, then you can use the answer choices to your advantage (and eliminate most of ...” October 19, 2018 Rich.C@EMPOWERgmat.com posted a reply to When positive integer N is divided by positive integer J, in the Problem Solving forum “Hi All, This question is a ''lift'' of an Official Guide question: OG2018 and OG2019 pg. 170, question #154 We''re told that P and J are positive INTEGERS, when P is divided by J, the REMAINDER is 14 and N/J = 134.08. We''re asked for the value of J. This question has a great ''math ...” October 19, 2018 Rich.C@EMPOWERgmat.com posted a reply to cost of package in the Problem Solving forum “Hi All, We''re told that the cost of sending a package is T cents for the FIRST 1/4 kilogram and T/5 cents for EACH additional 1/4 kilogram or fraction thereof. We''re asked for the cost, in cents, to send a P kilogram package at this rate, where P is an integer greater than 1. This question can ...” October 19, 2018 Rich.C@EMPOWERgmat.com posted a reply to An automobile manufacturer offers a station wagon with in the Problem Solving forum “Hi All, Sometimes Combination Formula questions come with answers that are relatively small. In this prompt, we know that there are at least 3 options, but no more than 8 options. In these situations, it''s usually pretty easy to "map out" all of the possible combinations, without ...” October 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to Maria wants to send a package overseas. She can either pay in the Data Sufficiency forum “Hi All, We''re told that Maria wants to send a package overseas. She can either pay shipping company A an amount dependent on the DISTANCE of the delivery, or pay shipping company B an amount dependent on the WEIGHT of the package. We''re asked which option is less expensive. 1) Company A ...” October 17, 2018 Rich.C@EMPOWERgmat.com posted a reply to A rectangular garden is to be twice as long as it is wide. in the Problem Solving forum “Hi All, We''re told that a rectangular garden is to be TWICE as long as it is wide and 360 total yards of fencing, including the gate, will completely enclose the garden. We''re asked for the length of the garden, in yards. This question can be solved in a couple of different ways, including by ...” October 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to A Martian bat flies at 60 yards per second from its nest to in the Problem Solving forum “Hi All, We''re told that a Martian bat flies at 60 yards per second from its nest to a dry lake. When it arrives there, it immediately continues at 45 yards per second to a nearby cave. If the distance between the lake and the cave is HALF the distance between the nest and the lake, we''re asked ...” October 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to Charlie takes 2.5 hours to fly from Los Angeles to Mexico in the Problem Solving forum “Hi All, We''re told that Charlie takes 2.5 hours to fly from Los Angeles to Mexico City, which is a total distance of 1200 miles. We''re asked for the average speed of his plane in miles per hour. This is a straight-forward ''Average Speed'' question, so we can just plug in the numbers at get ...” October 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to Anna and Carol buy CDs and tapes at a music store that sells in the Problem Solving forum “Hi All, We''re told that Anna and Carol buy CDs and tapes at a music store that sells each of its CDs for a certain price and each of its tapes for a certain price. Anna spends TWICE as much as Carol spends, buying THREE times as many CDs and the SAME number of tapes. If Carol spends$50.00 on ...”
October 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to The probability of winning game A is X and the probability in the Problem Solving forum
“Hi All, We''re told that the probability of winning Game A is X and the probability of winning Game B is Y. We''re asked when playing a SINGLE round of EACH of the two games, what is the probability of winning EXACTLY ONCE. This question can be solved in a couple of different ways, including by ...”
October 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to During 2005, a company produced an average of 2,000 products in the Problem Solving forum
“Hi Swerve, Although the prompt does not explicitly state it, we''re meant to infer that the company continues to produce products EVERY month (in the years 2005 through 2008, inclusive). A 200% increase in the monthly average (from 2005) would be 6,000 products per month for the ENTIRE 4-YEAR ...”
October 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to Probability in the Problem Solving forum
“Hi yoshi97, When posting a GMAT questions, you should make sure to post the 5 answer choices (as sometimes the answers provide a clue as to how to approach the question in the most efficient way possible or a shortcut to avoiding a math-heavy approach). Here we''re told that of all of the ...”
October 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to Full time student in the GMAT Strategy forum
“Hi Purvee, Raising a 490 to a 700+ will likely require at least another 3 months of consistent, guided study, even if you are studying full time - and you''ll have to make significant improvements to how you handle BOTH the Quant and Verbal sections. Thankfully, the GMAT is a consistent, ...”
October 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to Full time student in the GMAT Strategy forum
“Hi Purvee, To start, many Test Takers spend 3 months (or more) of consistent study time before they hit their ''peak'' scores, so if you limit your timeframe to just 2 months, then there might be a limit to how much you can improve. Before I can offer you the specific advice that you’re ...”
October 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to Dick and Jane each saved $3000 in 1989. In 1990 Dick save 8 in the Problem Solving forum “Hi All, We''re told that Dick and Jane EACH saved$3,000 in 1989. In 1990, Dick saved 8 percent MORE than he did in 1989, and TOGETHER he and Jane saved a total of $5,000. We''re asked APPROXIMATELY what percent less did Jane save in 1990 than in 1989. This question essentially comes down to the ...” October 10, 2018 Rich.C@EMPOWERgmat.com posted a reply to Angela’s grade was in the 90th percentile out of 80 grades in the Problem Solving forum “Hi swerve, We''re told that Angela’s grade was in the 90th percentile out of 80 grades in her class and in another class of 100 students there were 19 grades higher than Angela’s grade. We''re asked - if nobody had the same grade as Angela’s grade, what percentile was Angela in the two ...” October 10, 2018 Rich.C@EMPOWERgmat.com posted a reply to Quant Question from Princeton Mock: in the GMAT Math forum “Hi Mrrinali, To start, you would likely receive more of a response if you posted your questions in the specific forum for that category. For example, the DS forum is here: https://www.beatthegmat.com/data-sufficiency-f7.html We''re told that Byrne and some of his friends (men and women) go ...” October 10, 2018 Rich.C@EMPOWERgmat.com posted a reply to Bob is training for a fitness competition. In order to in the Problem Solving forum “Hi All, We''re told that Bob is training for a fitness competition. In order to increase his maximum number of pull-ups, he follows the following routine: he begins with 25 pull-ups, rests for thirty seconds, and then does 24 pull-ups and rests, dropping one pull-up each time (25, 24, 23, etc.) ...” October 10, 2018 Rich.C@EMPOWERgmat.com posted a reply to A certain car traveled twice as many miles from Town A to in the Problem Solving forum “Hi All, We''re told that a certain car traveled TWICE as many miles from Town A to Town B as it did from Town B to Town C. From Town A to Town B, the car averaged 12 miles per gallon, and from Town B to Town C, the car averaged 18 miles per gallon. We''re asked for the average MILES PER GALLON ...” October 10, 2018 Rich.C@EMPOWERgmat.com posted a reply to If Jim drives k miles in 50 minutes, how many minutes will in the Problem Solving forum “Hi All, We''re told that Jim drives K miles in 50 MINUTES. We''re asked how many MINUTES it will take him to drive 10 miles at the same rate. This question can be solved rather easily by TESTing VALUES. Since K can be any positive value, we can set K = 10. Thus, we know that Jim drives 10 ...” October 10, 2018 Rich.C@EMPOWERgmat.com posted a reply to If P is an odd integer and (P^2 + Q * R) is an even integer, in the Problem Solving forum “Hi All, We''re told that If P is an ODD integer and (P^2 + Q * R) is an EVEN integer. We''re asked which of the following MUST be true. This question can be solved with a mix of Number Properties and TESTing VALUES. To start, since P is ODD, we know that P^2 will also be ODD (since ODD^2 = ...” October 10, 2018 Rich.C@EMPOWERgmat.com posted a reply to Alex and Brenda both stand at point X. Alex begins to walk in the Problem Solving forum “Hi All, We''re told that Alex and Brenda both stand at point X, Alex begins to walk away from Brenda in a straight line at a rate of 4 miles per hour - and ONE HOUR later, Brenda begins to ride a bicycle in a straight line in the opposite direction at a rate of R miles per hour. We''re asked, if ...” October 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to A farm used two harvesting machines, H and K, to harvest 100 in the Problem Solving forum “Hi All, We''re told that a farm used two harvesting Machines, H and K, to harvest 100 acres of wheat. Harvesting Machine H, working alone at its constant rate, harvested 40 acres of wheat in 8 hours. Then harvesting Machine K was brought in, and harvesting Machines H and K, working together at ...” October 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to A retailer buys cases of 24 shirts for$30/case and then in the Problem Solving forum
“Hi All, We''re told that a retailer buys cases of 24 shirts for $30/case and then resells them in packs of 5 for$8/pack, the retailer sold ALL of the shirts it purchased and profited $84 on the sale. We''re asked for the number of PACKS of shirts that it sold. This question can be approached in ...” October 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to 5 times n is three less than twice n. What number is three in the Problem Solving forum “Hi All, We''re told that 5 times N is three less than twice N. We''re asked to find the number that is three less than twice N. This question is essentially about ''translating'' sentences into equations and a bit of Algebra. "5 times N is three less than twice N"... 5(N) = 2(N) ...” October 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the probability of getting exactly three heads on in the Problem Solving forum “Hi All, We''re asked for the probability of getting EXACTLY three heads on five flips of a fair coin. This question can be approached in a couple of different ways, but they all involve a bit of ''Probability math.'' To start, since each coin has two possible outcomes, there are ...” October 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to Problem solving: Difficulty level: 700, Source: Jamboree in the Problem Solving forum “Hi aishwaryav12, We''re told that X is an integer. We''re asked for the number of possible solutions for the equation X^2+5|X|+6=0. This question can approached in a couple of different ways, but you can actually solve it with Number Properties and avoid doing any calculations whatsoever. ...” October 7, 2018 Rich.C@EMPOWERgmat.com posted a reply to A certain scholarship committee awarded scholarships in the in the Problem Solving forum “Hi All, We''re told that a certain scholarship committee awarded scholarships in the amounts of$1250, $2500 and$4000 - there are twice as many $2500 scholarships as$4000 and it awarded three times as many $1250 scholarships as$2500 scholarships. A total of $37500 was awarded in$1250 ...”
October 7, 2018
Rich.C@EMPOWERgmat.com posted a reply to Working alone, pump A can empty a pool in 3 hours. Working in the Problem Solving forum
“Hi All, We''re told that working alone, Pump A can empty a pool in 3 HOURS and Pump B can empty the same pool in 2 HOURS. We''re asked how many MINUTES it would take the two pumps, working together, to empty the pool. This question can be solved in a couple of different ways, including with the ...”
October 7, 2018
Rich.C@EMPOWERgmat.com posted a reply to John tossed a fair coin 3 times. What is the probability in the Problem Solving forum
“Hi All, We''re told that John tossed a fair coin 3 times. We''re asked for the probability that the outcome was "tails" EXACTLY twice. This question can be approached in a number of different ways; sometimes the fastest way to answer these types of Probability questions is to just ...”
October 6, 2018
Rich.C@EMPOWERgmat.com posted a reply to Health insurance Plan A requires the insured to pay $1000 or in the Problem Solving forum “Hi All, We''re told that Health insurance Plan A requires the insured to pay$1000 or 50% of total cost, whichever is LOWER. Plan B requires the insured to pay the initial $300, but IT then pays 80% of the cost over$300. We''re asked which of the following is a cost level for which both ...”
October 5, 2018
Rich.C@EMPOWERgmat.com posted a reply to Which of the following is closest to the value of in the Problem Solving forum
“Hi All, We''re asked which of the following numbers is closest to the value of the given fraction. While it might appear that some of the answers are ''close'' to one another, the reality is that each answer is 10 TIMES greater than the answer immediately below it - meaning that we can use ...”
October 5, 2018
Rich.C@EMPOWERgmat.com posted a reply to Greg is training for a marathon by running to and from work in the Problem Solving forum
“Hi All, We''re told that Greg is training for a marathon by running to and from work each day, a distance of 12 miles each way; he runs from home to work at an average speed of 6 miles per hour and returns at an average speed of 4 miles per hour. We''re asked for Greg’s average speed, in miles ...”
October 5, 2018
Rich.C@EMPOWERgmat.com posted a reply to Vivian drives to her sister's house and back. She takes the in the Problem Solving forum
“Hi All, We''re told that Vivian drives to her sister''s house and back. She takes the exact same route both ways; on the trip out she drives an average speed of 50 miles per hour and on the trip back she drives an average speed of 70 miles per hour. We''re asked for her approximate average speed ...”
October 5, 2018
Rich.C@EMPOWERgmat.com posted a reply to Andrew bought pizzas for his swim team. Pepperoni pizzas in the Problem Solving forum
“Hi All, We''re told that Andrew bought pizzas for his swim team; pepperoni pizzas cost $13 each, combination pizzas cost$17 each and he bought only pepperoni or combination pizzas (spending a total of $184 on pizzas). We''re asked for the TOTAL number of pizzas he bought. This question can be ...” October 5, 2018 Rich.C@EMPOWERgmat.com posted a reply to If 5 people, each working at a constant rate can wash 8 cars in the Problem Solving forum “Hi All, We''re told that 5 people, each working at a constant rate, can wash 8 cars in 40 MINUTES. We''re asked how many people working at that same constant rate are needed to wash A cars in B HOURS. With these types of questions, it often helps to determine the total amount of work needed to ...” October 5, 2018 Rich.C@EMPOWERgmat.com posted a reply to Barbara invests$2400 in the National Bank at 5%. How much in the Problem Solving forum
“Hi All, We''re told that Barbara invests $2400 in the National Bank at 5%. We''re asked how much additional money she must invest at 8% so that the TOTAL annual income will be equal to 6% of her TOTAL investment. This question can be solved in a couple of different ways, including by TESTing THE ...” October 5, 2018 Rich.C@EMPOWERgmat.com posted a reply to The juice stall at the circus stocked just 2 brands of in the Problem Solving forum “Hi All, You might recognize this as a ''lift'' of an Official Guide question. You can find that question - and a discussion of how to solve it - here: https://www.beatthegmat.com/what-mistake-am-i-making-in-this-substitution-last-sunday-a-t276293.html GMAT assassins aren''t born, they''re ...” October 4, 2018 Rich.C@EMPOWERgmat.com posted a reply to A car salesman earns a base salary of$1,000 per month plus in the Problem Solving forum
“Hi All, We''re told that a car salesman earns a base salary of $1,000 per month plus a commission of$200 for each car he sells. He earned $2,200 in February. We''re asked for the number of cars he would have to sell in March in order to DOUBLE his February earnings. This question can be solved ...” October 4, 2018 Rich.C@EMPOWERgmat.com posted a reply to A hiker walking at a constant rate of 4 miles per hour is in the Problem Solving forum “Hi All, We''re told that a hiker walking at a constant rate of 4 miles per hour is passed by a cyclist traveling in the same direction along the same path at a constant rate of 20 miles per hour. the cyclist stops & waits for the hiker 5 minutes after passing her while the hiker continues to ...” October 4, 2018 Rich.C@EMPOWERgmat.com posted a reply to The weights of four packages are 1, 3, 5, and 7pounds, in the Problem Solving forum “Hi All, We''re told that the weights of four packages are 1, 3, 5, and 7 pounds, respectively. We''re asked which of the following CANNOT be the total weight, in pounds, of ANY combination of the packages. This question comes down to basic Arithmetic - and you might find that it''s easiest to ...” October 4, 2018 Rich.C@EMPOWERgmat.com posted a reply to If Max can complete a job in 4 hours and Nick can complete in the Problem Solving forum “Hi All, We''re told that Max can complete a job in 4 hours and Nick can complete the same job in 6 hours. We''re asked how many FEWER hours it would take Max and Nick working together to complete the job than Max alone needs to complete the job. This question can be solved in a couple of ...” October 4, 2018 Rich.C@EMPOWERgmat.com posted a reply to 580 (Q44 V26) to 670 (Q45 V37) in 2 months! in the I just Beat The GMAT! forum “Hi auljaj, A 670/Q45 is a strong score - and a fantastic improvement over your first attempt! When are you planning to apply to Business School? And what Schools are you planning to apply to? Congrats again on all of your success so far! Another GMAT Assassin has been made! Rich” October 4, 2018 Rich.C@EMPOWERgmat.com posted a reply to A garden center sells a certain grass seed in 5-pound bags in the Problem Solving forum “Hi All, We''re told that a garden center sells a certain grass seed in 5-pound bags at$13.85 per bag, 10-pound bags at $20.43 per bag, and 25-pound bags at$32.25 per bag. We''re asked, if a customer is to buy AT LEAST 65 pounds of the grass seed, but NO MORE THAN 80 pounds, what is the least ...”
October 3, 2018
Rich.C@EMPOWERgmat.com posted a reply to If Machine X can make 40 widgets in 8 minutes, how many in the Problem Solving forum
“Hi All, We''re told that Machine X can make 40 widgets in 8 minutes. We''re asked for the number of widgets it can make in 1 hour. This question is a straight-forward rate question and you can probably see that you can quickly determine the rate (in widgets/minute) of the Machine. 40 ...”
October 3, 2018
Rich.C@EMPOWERgmat.com posted a reply to During a two-week period, the price of an ounce of silver in the Problem Solving forum
“Hi All, We''re told that during a two-week period, the price of an ounce of silver INCREASED by 25 percent by the end of the first week and then DECREASED by 20 percent of this new price by the end of the second week. We''re asked, if the price of silver was X dollars per ounce at the beginning ...”
October 3, 2018
Rich.C@EMPOWERgmat.com posted a reply to Last year, Andre's company gave him a year-end bonus that in the Problem Solving forum
“Hi All, We''re told that last year, Andre''s company gave him a year-end bonus that was between $160 and$200 and this year, his year-end bonus was 200% GREATER than it was the previous year. We''re asked which of the following COULD be the value of Andre''s bonus this year, rounded to the ...”
October 2, 2018
Rich.C@EMPOWERgmat.com posted a reply to The price of a phone call consists of a standard connection in the Problem Solving forum
“Hi All, We''re told that the price of a phone call consists of a standard connection fee, which is constant, plus a per minute charge, a 10-minute call costs $2.90 and a 16-minute call costs$4.40. We''re asked for the cost of a 13-minute call. This question can be solved in a couple of ...”
October 2, 2018
Rich.C@EMPOWERgmat.com posted a reply to Working continuously 24 hours a day, a factory bottles Soda in the Problem Solving forum
“Hi All, We''re told that working continuously 24 hours a day, a factory bottles Soda Q at a rate of 500 liters per second and Soda V at a rate of 300 liters per second and that TWICE as many bottles of Soda V as of Soda Q are filled at the factory each day. We''re asked for the ratio of the ...”
October 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to Jan lives x floors above the ground floor of a highrise in the Problem Solving forum
“Hi All, We''re told that Jan lives X floors above the ground floor of a high-rise building; it takes her 30 SECONDS per floor to walk down the steps and 2 SECONDS per floor to ride the elevator. We''re asked if it takes Jan the SAME amount of time to walk down the steps to the ground floor as to ...”
October 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to The figure above represents a rectangular tank. How many in the Problem Solving forum
“Hi All, We''re told that the figure above represents a rectangular tank (with a length of 1200 cm, a width of 960 cm and a height of 120 cm). We''re asked for the number of cubic centimeters of water are in the tank when the water level is 10 centimeters BELOW the top of the tank. This question ...”
October 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to At a certain committee meeting only associate professors and in the Problem Solving forum
“Hi All, This question actually has a fantastic shortcut built into it that allows you to avoid almost all the long-winded math: Associates bring 2 pencils and 1 chart; a total of 3 items Assistants bring 1 pencil and 2 charts; a total of 3 items There are 10 pencils and 11 charts; a ...”
October 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to Alice and Bruce each bought a refrigerator... in the Problem Solving forum
“Hi All, We''re told that Alice and Bruce each bought a refrigerator, and the sum of their purchases was $900. We''re also told that TWICE of what Alice paid was$75 MORE than what Bruce paid. We''re asked what did Alice paid for her refrigerator. This question can be solved in a couple of ...”
September 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to Which of the following points is the intersection between in the Problem Solving forum
“Hi All, We''re asked which of the following points is the intersection between the lines y = 3x + 6 and y = -2x - 4. this question can be solved in a number of different ways. Sometimes, the fastest way to answer a question is to use ''brute force''; the five answers are co-ordinates and we know ...”
September 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to If x and y are positive integers greater than 1 such that x in the Problem Solving forum
“Hi All, We''re told that X and Y are positive integers GREATER than 1 such that (X - Y) is an EVEN integer and X/Y is an EVEN integer. We''re asked which of the following numbers must be NON-PRIME integers. This question can be solved with a mix of Number Property rules and TESTing VALUES. To ...”
September 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to A and B can complete a task in 20 days. B and C can complete in the Problem Solving forum
“Hi All, We''re told that A and B can complete a task in 20 days. B and C can complete the same task in 30 days and A and C can complete the task in 40 days. We''re asked to arrange the ''efficiencies'' of A, B, and C in descending order. This is actually more of a ''logic question'' than a ...”
September 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to Last year, a certain public transportation system sold an in the Problem Solving forum
“Hi All, We''re told that last year, a certain public transportation system sold an average (arithmetic mean) of 41,000 tickets per day on weekdays (Monday through Friday) and an average of 18,000 tickets per day on Saturday and Sunday. We''re asked which of the following is closest to the total ...”
September 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to The microcurrent through the electrode in a delicate circuit in the Problem Solving forum
“Hi All, We''re told that the microcurrent through the electrode in a delicate circuit is usually held constant at (3.6)(10^(-8)) amps and, because of a defect in another part of the circuit, the current was 1,000 times SMALLER. What was the current, in amps, caused by this defect. This question ...”
September 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to Improve My Overall Score in the Last Leg of Preparation? in the GMAT Strategy forum
“Hi Mrrinali, GMAC has publicly stated that the Official Score that you earn on Test Day is within +/- 30 points of actual ability. Assuming a similar ''swing'' in how your CATs function, your 2 CAT score results show that you essentially performed the same each time (about 630 +/- a few points). ...”
September 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to If x and y are integers, is the product xy odd? in the Data Sufficiency forum
“Hi All, We''re told that X and Y are INTEGERS. We''re asked if (X)(Y) is ODD. This is a YES/NO question and can be solved with Number Properties and TESTing VALUES. 1) X = -5 With the information in Fact 1, we know the value of X (and that it''s ODD). However, we don''t know whether Y is ...”
September 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to If a, b & c are integers, is abc odd? in the Data Sufficiency forum
“Hi AbhishekRyu, We''re told that A, B and C are INTEGERS. We''re asked if (A)(B)(C) is ODD. This is a YES/NO question and can be solved with Number Properties and TESTing VALUES. 1) (A)(B) is ODD Since A and B are both integers, the only way the product of those two numbers to be odd is ...”
September 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to The usage of sugar of a family of 3 adults and 2 children in the Problem Solving forum
“Hi All, We''re told that the usage of sugar of a family of 3 adults and 2 children was 13 kg in a certain month and the monthly AVERAGE usage of sugar for an adult is 3 kg and for a child is 1 kg. We''re asked by what percent THIS specific month’s sugar consumption was more or less than the ...”
September 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to A lecture course consists of 595 students. The students are in the Problem Solving forum
“Hi All, We''re told that a lecture course consists of 595 students and that the students are to be divided into discussion sections, each with an EQUAL number of students. We''re asked which of the following CANNOT be the number of students in a discussion section. This question is really just ...”
September 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to If x and y are different prime numbers, each greater than 2, in the Problem Solving forum
“Hi All, We''re told that a X and Y are DIFFERENT PRIME numbers, each GREATER than 2. We''re asked which of the following must be true (which really means "which of these is ALWAYS true no matter how many different examples you can come up with?"). This question can be solved used ...”
September 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain liquid passes through a drain at a rate of w/20 ga in the Problem Solving forum
“Hi All, We''re told that a certain liquid passes through a drain at a rate of W/20 gallons every X SECONDS. We''re asked how many MINUTES it would take Y gallons to pass through the drain. This question can be solved in a number of different ways, including by TESTing VALUES. IF.... W=20 ...”
September 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to Time for me to Stop Studying on my Own? - GMAT Quant Help in the GMAT Math forum
“Hi andyaf, To start, a 500 is a decent initial CAT Score (the average Score on the Official GMAT hovers around 550 most years). That having been said, it will take a LOT of work to raise a 500 to 750+, and you''ll have to make significant improvements to how you handle BOTH the Quant and ...”
September 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to At a dinner party 5 people are to be seated around a in the Problem Solving forum
“Hi All, We''re told that 5 people are to be seated around a circular table and that two sitting arrangements are considered different only when the positions of the people are different relative to each other. We''re asked for the total number of possible sitting arrangements of the group. ...”
September 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to In Dives Corporation, 75% of the employees are customer in the Problem Solving forum
“Hi All, We''re told that in the Dives Corporation, 75% of the employees are customer service representatives, 15% are programmers, and 10% are managers, the customer service representatives have an average salary of $60,000, and the programmers have an average salary of$100,000. We''re asked if ...”
September 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to In the xy-plane, if line k has negative slope, is the in the Data Sufficiency forum
“Hi All, We''re told that in the xy-plane, Line K has NEGATIVE slope. We''re asked if the y-intercept of Line K is positive. This is a YES/NO question. It can be solved in a couple of different ways, including by TESTing VALUES. To start, with a negative slope, BOTH the x-intercept and ...”
September 25, 2018
Rich.C@EMPOWERgmat.com posted a reply to 12 years out of college, GMAT study plan? in the GMAT Strategy forum
“Hi KDR83, That''s great news - especially considering the time off you took over the Summer. To clarify things a bit though, was this a CAT that you had taken before (or did you see any questions on it that you had previously answered?)? GMAT assassins aren''t born, they''re made, Rich”
September 25, 2018
Rich.C@EMPOWERgmat.com posted a reply to Machine A and Machine B can produce 1 widget in 3 hours work in the Problem Solving forum
“Hi All, This question is a bit more complex than a typical Work question, but you can still use the Work Formula to solve it. Work = (A)(B)/(A+B) where A and B are the speeds of the two individual machines From the prompt, we know that Machine A and Machine B, working together, can produce ...”
September 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to If six coins are flipped simultaneously, the probability of in the Problem Solving forum
“Hi All, We''re told that six coins are flipped simultaneously. We''re asked which probability is closest to getting AT LEAST one heads and AT LEAST one tails. This question comes down to a bit of probability math (which is essentially just about doing the necessary Arithmetic). With 6 coins, ...”
September 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to A conference room has two analog (12-hour format) clocks, in the Problem Solving forum
“Hi All, We''re told that a conference room has two analog (12-hour format) clocks, one on the north wall and one on the south wall; the clock on the north wall LOSES 30 seconds per HOUR, and the clock on the south wall GAINS 15 seconds per HOUR. We''re asked, if the clocks begin displaying the ...”
September 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to A seller sold two shoes at the same selling price. If the in the Problem Solving forum
“Hi All, We''re told that a seller sold two shoes at the SAME selling price; the percentage profit on one of the shoes was 30% and the percentage loss on the other shoe was 30%. We''re asked for the overall percentage profit or loss made by the seller. This question can be solved by TESTing ...”
September 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to clarification on GMAT 2016 DS problem in the Data Sufficiency forum
“Hi All, We''re told that a taxi company charges F cents for the first mile of the taxi ride and M cents for each additional mile. We''re asked how much the company charges for a 10 mile taxi ride. This question can be solved with a mix of Algebra and TESTing VALUES. 1) The company charges ...”
September 21, 2018
Rich.C@EMPOWERgmat.com posted a reply to If 12 men and 16 women can do a piece of work in 5 days and in the Problem Solving forum
“Hi All, We''re told that 12 men and 16 women can do a piece of work in 5 days and 13 men and 24 women can do it in 4 days. We''re asked how long it will take 7 men and 10 women to complete that same task. This question can be approached in a couple of different ways (some of which involve a lot ...”
September 20, 2018
Rich.C@EMPOWERgmat.com posted a reply to The Malibu Country Club needs to drain its pool for in the Problem Solving forum
“Hi All, We''re told that a The Malibu Country Club needs to drain its pool for refinishing. The hose they use to drain it can remove 60 cubic feet of water per MINUTE, the pool is 80 feet wide by 150 feet long by 10 feet deep and is currently at 80% full. We''re asked how long it will, in HOURS, ...”
September 20, 2018
Rich.C@EMPOWERgmat.com posted a reply to Bobby bought 2 shares, and which he sold for $96 each. If he in the Problem Solving forum “Hi All, We''re told that Bobby bought 2 shares, which he sold for$96 each, he had a profit of 20% on the sale of one of the shares but a loss of 20% on the sale of the other share. We''re asked to find the TOTAL profit or loss on the sale of the two shares. This question essentially comes down ...”
September 20, 2018
Rich.C@EMPOWERgmat.com posted a reply to A driver paid n dollars for auto insurance for the year in the Problem Solving forum
“Hi All, We''re told that a driver paid N dollars for auto insurance for the year 1997. This annual premium was raised by P percent for the year 1998, then for EACH of the years 1999 and 2000, the premium was decreased by 1/6 from the previous year’s figure, leaving the driver’s insurance ...”
September 20, 2018
Rich.C@EMPOWERgmat.com posted a reply to If a mixture of ground meat consists of 2 pounds of veal in the Problem Solving forum
“Hi All, We''re told that a mixture of ground meat consists of 2 pounds of veal that costs X dollars per pound, and 5 pounds of beef that costs Y dollars per pound. We''re asked for the cost, in dollars, per pound of the mixture. This question can be approached in a number of different ways, ...”
September 20, 2018
Rich.C@EMPOWERgmat.com posted a reply to Which of the following decribes all values of n for which in the Problem Solving forum
“Hi All, We''re asked which of the following describes all values of N for which (N^2 - 1) is greater than or equal to 0. This question can be solved in a couple of different ways, but you might find it easiest to TEST VALUES. Since we''re SQUARING the value of N, we know that there will be ...”
September 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to A basket contains 5 apples, of which 1 is spoiled and the in the Problem Solving forum
“Hi All We''re told that we have 4 regular apples and 1 spoiled apple. We''re asked - if you grab 2 apples, then what''s the probability of getting the spoiled apple? The question can be solved in a couple of ways. Here''s how to track each of the different outcomes that matches what we''re ...”
September 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to Oscar is running in a straight line away from Nancy at the in the Problem Solving forum
“Hi All, We''re told that Oscar is running in a straight line away from Nancy at the rate of 20 feet per second, Nancy is chasing Oscar at the rate of 25 feet per second and Oscar has a 100-foot head start. We''re asked for the number of seconds it will it take Nancy to catch Oscar. This is an ...”
September 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to In each of five taste tests, each of 51 participants chose in the Data Sufficiency forum
“Hi All, We''re told that in each of 5 taste tests, each of 51 participants chose either Brand X or Brand Y. The brand chosen by the majority of participants in a taste test was the winner of that taste test, and the brand that won the majority of the taste tests was deemed the better brand. ...”
September 17, 2018
Rich.C@EMPOWERgmat.com posted a reply to Two gardeners, Burton and Philips in the Problem Solving forum
“Hi All, We''re told that two gardeners, Burton and Philips, work at independent constant rates to prune a garden full of roses. If both gardeners start at the same time and work at their normal rates, they will complete the job in 45 minutes. However, if Philips were to work at TWICE Burton''s ...”
September 17, 2018
Rich.C@EMPOWERgmat.com posted a reply to Going in to the last game of his basketball season, Adrian in the Problem Solving forum
“Hi All, We''re told that going in to the last game of his basketball season, Adrian had averaged 24 points per game and in his last game, he scored 50 points (bringing his average to 26 points per game for the season). We''re asked for the TOTAL number of games Adrian played that season. This ...”
September 17, 2018
Rich.C@EMPOWERgmat.com posted a reply to Grandmother's Punch hangover cure is a mix of two in the Problem Solving forum
“Hi All, We''re told that Grandmother''s Punch hangover cure is a mix of two ingredients: a herbal extraction that contains 20% alcohol and apricot cider that contains 5% alcohol. We''re asked if a 750-milliliter Grandmother''s Punch bottle has 87 milliliters of alcohol, how much apricot cider ...”
September 17, 2018
Rich.C@EMPOWERgmat.com posted a reply to What is the perimeter of isosceles triangle LMN? 1) Side LM in the Data Sufficiency forum
“Hi All, We''re told that triangle LMN is an isosceles triangle. We''re asked for the PERIMETER of that triangle. 1) Side LM has a length of 4 With the information in Fact 1, we know that one (or possibly two) of the sides of this isosceles triangle, but we don''t know all 3 sides, so ...”
September 17, 2018
Rich.C@EMPOWERgmat.com posted a reply to A zebra must get water from either a stream or pond. Which in the Data Sufficiency forum
“Hi All, We''re told that a zebra must get water from either a stream or pond. We''re asked which of the two sources of water is closer to the zebra’s current position. 1) Moving at a constant rate, it takes the zebra 2 hours to reach the stream from its current position. Fact 1 tells ...”
September 14, 2018
Rich.C@EMPOWERgmat.com posted a reply to Taking the GMAT in four days. Need advice calming my nerves in the GMAT Strategy forum
“Hi Varun, In these last few days, you should NOT try to do too much work (NO ''cramming" and NO CATs). You would be best served by doing some general review and keeping your studies light. Try to get some extra rest so that you can go into Test Day calm, clear-headed and ready to work. As ...”
September 14, 2018
Rich.C@EMPOWERgmat.com posted a reply to Each baseball team in a league has a roster of players in in the Problem Solving forum
“Hi All, We''re told that each baseball team in a league has a roster of players in the ratio of 2 pitchers for every 3 fielders, each team has a total of 25 players on its roster and there are 12 total teams in the league. We''re asked for the DIFFERENCE between the total number of fielders and ...”
September 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain library assesses fines for overdue books as in the Problem Solving forum
“Hi All, This question includes a ''conditional statement'' that effects how you''re supposed to handle each "step" in the math: "for each additional day....., the total fine is EITHER increased by 30 cents OR doubled, whichever results in the LESSER AMOUNT." Since ...”
September 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to Kevin drove from A to B at a constant speed of 60 mph. Once in the Problem Solving forum
“Hi All, We''re told that Kevin drove from A to B at a constant speed of 60 mph, then he turned right around without pause, and returned to A at a constant speed of 80 mph. In addition, exactly 4 hours before the end of his trip, he was STILL approaching B, only 15 miles away from it. We''re ...”
September 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to The variable x takes on integer values between 1 and 7 in the Problem Solving forum
“Hi All, We''re told that the variable X takes on integer values between 1 and 7 inclusive as shown above (meaning that out of a total of 15 values, there are three 1s, one 2, three 3s, one 4, etc.). We''re asked for the probability that the absolute value of the DIFFERENCE between the MEAN (re: ...”
September 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to Standard Deviation Problem in the Problem Solving forum
“Hi All, We''re told that for a certain examination, a score of 58 was 2 standard deviations BELOW the mean and a score of 98 was 3 standard deviations ABOVE the mean. We''re asked for the mean score for the examination. The math behind this question is just basic Algebra, but depending on how ...”
September 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMAT PREP ? (TableSpoons) in the Problem Solving forum
“Hi All, We''re told that 3 teaspoons = 1 tablespoon and 4 tablespoons = 1/4 cup. We''re asked for the number of teaspoons that are equal to 3/8 cup. This question is a big ''unit conversion'' question and includes a big ''design shortcut'' that you can use to avoid most of the math. To start, ...”
September 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to Alex paid a $12 fee to receive a 10% discount off of the in the Problem Solving forum “Hi All, We''re told that Alex paid a$12 fee to receive a 10% discount off of the list price on all books he bought in a six-month period and Victor paid a $15 fee to receive a 15% discount off of the list price on all books he bought in the same period. We''re told that EACH person bought books ...” September 3, 2018 Rich.C@EMPOWERgmat.com posted a reply to Six children — A, B, C, D, E, and F — are going to sit i in the Problem Solving forum “Hi All, We''re told that six children - A, B, C, D, E, and F - are going to sit in six chairs in a row, but Child E must be somewhere to the LEFT of Child F. We''re asked for the number of possible configurations of the children. This question is a permutation question with a small twist - and ...” September 3, 2018 Rich.C@EMPOWERgmat.com posted a reply to When traveling at a constant speed of 32 miles per hour, a in the Problem Solving forum “Hi All, We''re told that when traveling at a constant speed of 32 miles per HOUR, a certain motorboat consumes 24 gallons of fuel per HOUR. We''re asked for the fuel consumption of this boat at this speed measured in miles traveled per gallon of fuel. Sometimes the big ''step'' you have to ...” August 28, 2018 Rich.C@EMPOWERgmat.com posted a reply to If x, y, and z are negative numbers such that z = 40x + 80y in the Data Sufficiency forum “Hi All, We''re told that X, Y and Z are NEGATIVE numbers such that Z = 40X + 80Y and X+Y = -1. We''re asked if Z is LESS than -60. This is a YES/NO question and can be solved by TESTing VALUES and/or using a bit of logic. To start, this question has some interesting limitations to it. Since ...” August 28, 2018 Rich.C@EMPOWERgmat.com posted a reply to The temperature of a place at noon on a certain day is 25% in the Data Sufficiency forum “Hi All, We''re told that the temperature of a place at noon on a certain day is 25% higher than the temperature of the same place at midnight on the same day. We''re asked for the temperature of the place at midnight. This question can be solved in a couple of different ways, but it''s actually ...” August 28, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 The cost of 10 pounds of apples in the Data Sufficiency forum “Hi All, We''re told that the cost of 10 pounds of apples and 2 pounds of grapes was$12. We''re asked for the cost per pound of apples. We can answer this question with a mix of Algebra and TESTing VALUES. 1) The cost per pound of grapes was $2. With the given information in the prompt, ...” August 26, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 If a certain vase contain in the Data Sufficiency forum “Hi All, We''re told that a certain vase contains only roses and tulips. We''re asked for the number of tulips in the vase. This question can be solved by TESTing VALUES. 1) The number of roses in the vase is 4 times the number of tulips in the vase. IF..... there''s 1 tulip, then there ...” August 26, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 What is the number of in the Data Sufficiency forum “Hi All, We''re asked for the number of pages of a certain journal article. Certain DS questions can be answered with a bit of logic and just considering a few possibilities. 1) The size of each page is 5.5 inches by 8 inches. Fact 1 tells us NOTHING about the number of pages, so there ...” August 26, 2018 Rich.C@EMPOWERgmat.com posted a reply to Which of the following points could lie in the same quadrant in the Problem Solving forum “Hi All, Co-ordinate Geometry (or "graphing", as most people call it) is a relatively rare category in the GMAT Quant section; you''ll likely see just 1 of these questions on Test Day. The question is perfect for TESTing VALUES. Here''s how: We''re asked which of the 5 answers COULD ...” August 26, 2018 Rich.C@EMPOWERgmat.com posted a reply to A certain archery target is made up of a series of in the Problem Solving forum “Hi VJesus12, We''re told that the circular center region (the bull’s-eye) has a radius of 3 inches, each successive circle has a radius 3 inches greater than the one before and the largest scoring ring has an area of 153π square inches. We''re asked for the probability that an arrow that hits ...” August 25, 2018 Rich.C@EMPOWERgmat.com posted a reply to If the radius of a cylinder is half the length of the edge in the Problem Solving forum “Hi All, We''re told that the radius of a cylinder is HALF the length of the edge of a cube and the height of the cylinder is EQUAL to the length of the edge of the cube. We''re asked for the ratio of the volume of the cube to the volume of the cylinder. This question can be solved by TESTing ...” August 25, 2018 Rich.C@EMPOWERgmat.com posted a reply to Empowergmat for a month and a 40 point score jump! in the I just Beat The GMAT! forum “Hi Vid2018, With that 720, you can absolutely apply to any Schools that interest you! You''ve named some highly-competitive Schools, so beyond having a strong Overall profile, you have to make sure that you properly ''market yourself'' to each individual Program that you apply to. As such, you ...” August 25, 2018 Rich.C@EMPOWERgmat.com posted a reply to If the sales tax on a$12.00 purchase is $0.66, what is the in the Problem Solving forum “Hi All, We''re told that the sales tax on a$12.00 purchase is $0.66. We''re asked for the sales tax on a$20.00 purchase. This question can be solved in a number of different ways (depending on how you want to organize your math). Here''s how you can use a ratio to answer the question. ...”
August 23, 2018
Rich.C@EMPOWERgmat.com posted a reply to For a group of n people, k of whom are of the same sex, the in the Problem Solving forum
“Hi All, We''re told that for a group of N people, K of whom are of the same sex, the (N-K)/N expression yields an index for a certain phenomenon in group dynamics for members of that sex. We''re asked - for a group that consists of 20 people, 4 of whom are females, by how much does the index for ...”
August 23, 2018
Rich.C@EMPOWERgmat.com posted a reply to At a bowling alley, Neil can win a free pair of bowling in the Problem Solving forum
“Hi All, We''re told that at a bowling alley, Neil can win a free pair of bowling shoes if he AVERAGES a score of AT LEAST 200 over 8 games and his scores in his first seven games were 192, 188, 195, 197, 205, 208, and 203. We''re asked for the minimum score he needs in his last game to win the ...”
August 23, 2018
Rich.C@EMPOWERgmat.com posted a reply to Empowergmat for a month and a 40 point score jump! in the I just Beat The GMAT! forum
“Hi Vid2018, That''s outstanding news! A V41 is above the 90th percentile - and if that''s indicative of your Overall Score on the GMAT, then you can comfortably apply to any Business Schools that interest you! 1) When are you planning to apply to Business School? 2) What Schools are you ...”
August 23, 2018
Rich.C@EMPOWERgmat.com posted a reply to There are 27 different three-digit integers that can be form in the Problem Solving forum
“Hi All, We''re told that there are 27 different three-digit integers that can be formed using only the digits 1, 2 and 3 and that all 27 of the integers were listed. We''re asked for the SUM of those 27 different integers. This question has a great series of built-in ''logic shortcuts'' that ...”
August 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to On his drive to work, Leo listens to one of three radio in the Problem Solving forum
“Hi All, We''re told that Leo listens to one of three radio stations A, B or C. He first turns to A. If A is playing a song he likes, he listens to it; if not, he turns it to B. If B is playing a song he likes, he listens to it; if not, he turns it to C. If C is playing a song he likes, he ...”
August 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain brand of gasoline costs $1.25 per gallon. Using in the Problem Solving forum “Hi All, We''re told that a certain brand of gasoline costs$1.25 per gallon. We''re asked if a car averages 30 miles per gallon, what is the cost of the gasoline needed for the car to travel 120 miles. This is a multi-step ''Rate'' question - and the math involved can be done in a number of ...”
August 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to R is the set positive odd integers less than 50, and S is in the Problem Solving forum
“Hi All, We''re told that R is the set of positive ODD integers LESS than 50, and S is the set of the SQUARES of the integers in R. We''re asked for the number of elements that are in BOTH R and S. This question is built around some basic Arithmetic and note taking. To start, I''m going to ...”
August 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to Jason can stack two shelves in 3 hours and Maria can stack in the Problem Solving forum
“Hi All, We''re told that Jason can stack 2 shelves in 3 hours and Maria can stack 3 shelves in 2 hours. We''re asked how long will it take them together, working at their constant rates, to stack thirteen shelves. This question is a ''rate'' question, so you can work through the math in a number ...”
August 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to On a certain trasatlantic crossing, 20 percent of a ship's in the Problem Solving forum
“Hi All, We''re told that on a certain transatlantic crossing, 20% of a SHIP''S PASSENGERS held round-trip tickets AND took their cars aboard the ship and 60% of the PASSENGERS WITH ROUND-TRIP TICKETS did NOT take their cars aboard the ship. We''re asked what percent of the ship''s passengers ...”
August 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to Set X consists of the first 100 positive even integers. Set in the Problem Solving forum
“Hi All, We''re told that Set X consists of the first 100 positive EVEN integers and Set Y consists of the first 100 positive multiples of 5. If the terms in both sets are combined to create a new set with NO repeat elements, we''re asked for the sum of all unique terms in the new set. This ...”
August 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to Each of three students is given fifteen tokens to spend at in the Data Sufficiency forum
“Hi All, We''re told that each of three students is given 15 tokens to spend at a fair with various tents to visit, some tents cost 3 tokens to enter, and some cost 4 tokens to enter. We''re asked for the number of tents that Amelia visited. This question can be solved by TESTing VALUES. 1) ...”
August 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to A local restaurant prepares one of three desserts every day in the Problem Solving forum
“Hi All, We''re told that a local restaurant prepares one of three desserts every day they are open, Monday through Saturday: cake, pastries, or brownies, the dessert on Wednesday MUST be brownies and the same dessert is NOT served on consecutive days. We''re asked for the number of different ...”
August 15, 2018
“Hi Sagar, I agree that taking one day ''off'' from your studies each week would be a good idea. In the broader sense, you should also be thinking in terms of the ''quality'' of your study - and not the ''quantity'' of it. With 16-18 hours of study each week, you could accomplish a great deal - ...”
August 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to When x is divided by 2, the remainder is 1 and y is divided in the Problem Solving forum
“Hi All, We''re told that X and Y are INTEGERS, when X is divided by 2, the remainder is 1 and when Y is divided by 8, the remainder is 2. We''re asked which answer COULD be the value of 2X + Y. This question can be solved by TESTing VALUES. Since X/2 has a remainder of 1, then X must be ODD: ...”
August 14, 2018
Rich.C@EMPOWERgmat.com posted a reply to Bob invests 100 dollars in a fund that yileds 15% simple in the Problem Solving forum
“Hi All, We''re told that Bob invests 100 dollars in the middle of January into a fund that yields 15% simple interest calculated monthly. We''re asked for the first month in which the fund will have more than $200 total. This question involves the Simple Interest Formula, although you will ...” August 14, 2018 Rich.C@EMPOWERgmat.com posted a reply to One-fifth of the students at a nursery school are 4 years in the Problem Solving forum “Hi All, We''re told that 1/5 of the students at a nursery school are 4 years old or older, 16 students have not yet reached their third birthday and a total of 40 students are NOT between 3 years old and 4 years old. We''re asked for the total number of children in the nursery school. This ...” August 14, 2018 Rich.C@EMPOWERgmat.com posted a reply to Please help to crack GMAT ..... in the The GMAT Avengers Study Group forum “Hi Sagar, With another 3-4 months of consistent study, you could potentially improve a great deal - you will likely need all of that time to get to the point that you are consistently scoring 700+, so you will need to be efficient with this next phase of your studies. Many Test Takers who ...” August 14, 2018 Rich.C@EMPOWERgmat.com posted a reply to If x ≠ 0, is y greater than 0? in the Data Sufficiency forum “Hi All, We''re told that X is NOT equal to 0. We''re asked if Y is greater than 0. This is a YES/NO question. This question can be solved by with a mix of Number Properties and TESTing VALUES. 1) (X)(Y) = 24 IF.... X = postive and Y = positive, then the answer to the question is YES. X ...” August 12, 2018 Rich.C@EMPOWERgmat.com posted a reply to numbers in the Problem Solving forum “Hi vaibhav101, We''re told that 5^A is a FACTOR of N! and the greatest integer value of A is 6. We''re asked for the largest possible value of B such that 7^B is a factor of N! This question is based on Prime Factorization, but comes with a ''twist.'' We''re limited by the 5s that appear in ...” August 12, 2018 Rich.C@EMPOWERgmat.com posted a reply to Solution A is 40% chlorine by volume, and Solution B is 60% in the Problem Solving forum “Hi All, We''re told that Solution A is 40% chlorine by volume, and Solution B is 60% chlorine by volume and that a tank currently holds 40 gallons of Solution A. We''re asked for the number of gallons of Solution B must be added so that the liquid in the tank becomes 50% chlorine. This is a ...” August 12, 2018 Rich.C@EMPOWERgmat.com posted a reply to George bought a large electronic item with a 15% off coupon, in the Problem Solving forum “Hi All, We''re told that George bought a large electronic item with a 15% off coupon, and paid a total bill. When he got outside, he studied the receipt and realize that he mistakenly had been given double the discount of the coupon, even though there was no double-coupon offer in effect that ...” August 12, 2018 Rich.C@EMPOWERgmat.com posted a reply to Please help to crack GMAT ..... in the The GMAT Avengers Study Group forum “Hi Sagar, I''m sorry to hear that Test Day did not go as well as hoped. From what you describe, I think that while you worked through lots of practice questions, you did not necessarily focus on learning and practicing the proper Tactics (and those Tactics are what you will need to hit 720+ on ...” August 12, 2018 Rich.C@EMPOWERgmat.com posted a reply to To Understand GMAT format and Pattern in the GMAT Strategy forum “Hi Amit, To start, you can learn about the GMAT and get some free practice materials at www.mba.com. Since it sounds like you''re just beginning your studies, then it would be a good idea to take a FULL-LENGTH practice CAT Test; you can take 2 for free at www.mba.com. If you want to do a ...” August 10, 2018 Rich.C@EMPOWERgmat.com posted a reply to As a bicycle salesperson, Norman earns a fixed salary of ... in the Data Sufficiency forum “Hi All, To start, we will need to 5 answer choices for reference (as the ability to ''prove'' or ''disprove'' an answer can help us to eliminate answer choices): A) I only B) II only C) I and II D) II and III E) I, II, and III This Roman Numeral question can be solved with ...” August 8, 2018 Rich.C@EMPOWERgmat.com posted a reply to a, b, x & y are positive integers. If ay=bx, is 7 a fact in the Data Sufficiency forum “Hi vinni.k, We''re told that A, B, X and Y are positive INTEGERS and that (A)(Y) = (B)(X). We''re asked if 7 a factor of X. This is a YES/NO questions. While this prompt might look ''scary'', it''s built around a Prime Factorization ''shortcut'' that you can use to avoid doing lots of math. ...” August 8, 2018 Rich.C@EMPOWERgmat.com posted a reply to The surface area of a rectangular field was changed so that in the Data Sufficiency forum “Hi All, We''re told that the surface area of a rectangular field was changed so that one of its dimensions was REDUCED by 10 feet and the other dimension was INCREASED by 20 feet. We''re asked for the area of the field BEFORE these changes were made. This question can be solved by TESTing ...” August 8, 2018 Rich.C@EMPOWERgmat.com posted a reply to Each of the 45 boxes on shelf J weighs less than each of the in the Data Sufficiency forum “Hi NandishSS, This is a great ''concept'' question, meaning that you don''t really have to do any math to answer it as long as you understand the concepts involved. We''re told that EACH of the 45 boxes on shelf J weighs LESS than EACH of the 44 boxes on shelf K. We''re asked for the MEDIAN ...” August 7, 2018 Rich.C@EMPOWERgmat.com posted a reply to Buckets X and Y contained only water and bucket Y was in the Data Sufficiency forum “Hi All, We''re told that Buckets X and Y contained only water and bucket Y was 1/2 full and that all of the water in bucket X was then poured into bucket Y. We''re asked what fraction of the capacity of Y was then filled with water. This question can be approached in a couple of different ways, ...” August 7, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Prep?? (Question&Session) Pract2 in the Problem Solving forum “Hi All, We''re told that a certain class, consisting of a lecture and a question-and-answer session, lasted from 2:45 to 4:30 one afternoon and the lecture lasted from 2:45 to 4:15. We''re asked for the fraction of the TOTAL time that the question-and-answer session represented. This question is ...” August 7, 2018 Rich.C@EMPOWERgmat.com posted a reply to Which of the following is NOT the sum of the squares of two in the Problem Solving forum “Hi All, Which of the following is NOT the sum of the squares of two integers. This question has a great ''brute force'' approach to it. Sometimes the big ''shortcut'' that you''ll find in a prompt is in the way that you organize your information. For this question, try writing the first 12 ...” August 7, 2018 Rich.C@EMPOWERgmat.com posted a reply to Jim went to the bakery to buy donuts for his office mates. H in the Problem Solving forum “Hi alanforde800Maximus, We''re told that Jim bought a quantity of similar donuts, for which he was charged a total of$15. As the donuts were being boxed, Jim noticed that a few of them were slightly ragged-looking so he complained to the clerk, who apologized and then gave Jim 3 EXTRA donuts for ...”
August 6, 2018
Rich.C@EMPOWERgmat.com posted a reply to A motorcycle travels at a speed of x kilometers per p hours. in the Problem Solving forum
“Hi All, We''re told that a motorcycle travels at a speed of X kilometers per P hours. We''re asked for the number of meters it will travel in S seconds, in terms of S, P and X. (xps ≠ 0; 1 kilometer = 1000 meters). This question can be solved in a number of different way, including by TESTing ...”
August 6, 2018
Rich.C@EMPOWERgmat.com posted a reply to Martha receives an annual salary of $20,000 plus a in the Problem Solving forum “Hi All, We''re told that Martha receives an annual salary of$20,000 plus a commission of 10 percent on sales in EXCESS of $80,000 while Sandra receives an annual salary of$30,000 plus a 5 percent commission on her total annual sales only IF they exceed $120,000. We''re asked which sales ...” August 6, 2018 Rich.C@EMPOWERgmat.com posted a reply to A business firm reduces the number of hours its employees in the Problem Solving forum “Hi All, We''re told that a business firm reduces the number of hours its employees work from 40 hours per week to 36 hours per week while continuing to pay the SAME TOTAL amount of money. If an employee earned X dollars per HOUR before the reduction in hours, we''re asked how much the employee ...” August 6, 2018 Rich.C@EMPOWERgmat.com posted a reply to Tom, who has 50 math questions, will get 5 points in the Problem Solving forum “Hi VJesus12, We''re told that Tom, who has 50 math questions, will get 5 points per question if he chooses a correct answer and he will lose 2 points if he chooses a wrong answer to a question or skips one. We''re asked which of the following COULD be the score if he solves all 50 questions. ...” August 6, 2018 Rich.C@EMPOWERgmat.com posted a reply to If a and b represent positive single digits in the correctly in the Problem Solving forum “Hi All, We''re told that A and B each represent positive single DIGITS in the correctly worked calculation: 22 + A3 + 4B = 90 (reminder: each value is a 2-digit number). We''re asked for the value of the two digit integer BA. This question can be solved in a couple of different ways. You can do ...” August 6, 2018 Rich.C@EMPOWERgmat.com posted a reply to Seven friends are living in 7 different flats of an apartmen in the Problem Solving forum “Hi alanforde800Maximus, We''re told that seven friends are living in 7 different flats of an apartment and each was allotted a parking slot to park their cars in the ground floor; however, they used to park their cars randomly in any of the seven slots. We''re asked for the number of ways that ...” August 6, 2018 Rich.C@EMPOWERgmat.com posted a reply to A card game called “high-low” divides a deck of 52 playi in the Problem Solving forum “Hi All, Some of the information in this prompt is ultimately not a factor in the solution (the fact that there are 26 ''high'' cards and 26 ''low'' cards is not a factor - it just establishes that there are enough cards to score "5 points"). We''re told that high cards are worth 2 ...” August 1, 2018 Rich.C@EMPOWERgmat.com posted a reply to In a nationwide poll, P people were asked 2 questions. If in the Problem Solving forum “Hi All, We''re told that in a nationwide poll, P people were asked 2 questions, 2/5 answered “yes” to question 1, and OF THOSE people, 1/3 also answered “yes” to question 2. We''re asked which of the following represents the number of people polled who did NOT answer “yes” to BOTH ...” August 1, 2018 Rich.C@EMPOWERgmat.com posted a reply to A retailer orders u units of an item for which he pays d in the Problem Solving forum “Hi All, We''re told that a retailer orders U units of an item for which he paid a total of D dollars, but he mistakenly receives (U - 3) items. We''re asked for the amount he was overcharged, in terms of D and U. This question can be solved in a couple of different ways, including by TESTing ...” August 1, 2018 Rich.C@EMPOWERgmat.com posted a reply to One-third of a barrel's contents is emptied with each turn in the Problem Solving forum “Hi All, We''re told that one-third of a barrel''s contents is emptied with each turn of the wheel. We''re asked, if the barrel begins full, what fraction of the barrel remains after 2 turns of the wheel. This question can be solved in a couple of different ways, including by TESTing VALUES. ...” August 1, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 Ron is 4 inches taller than in the Problem Solving forum “Hi All, We''re told that Ron is 4 inches TALLER than Amy, Barbara is 1 inch TALLER than Ron and Barbara''s height is 65 inches. We''re asked for the MEDIAN height, in inches, of these three people. The word ''median'' means "middle number"; to find that value, we first half to list the ...” July 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 While a family was away on in the Problem Solving forum “Hi All, We''re told that while a family was away on vacation, they paid a neighborhood boy$11 per WEEK to mow their lawn and $4 per DAY to feed and walk their dog. We''re asked how much the family paid the boy for his services if the family was away for exactly 3 WEEKS. This is essentially a ...” July 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to Two thirds of the roads from A to B are at least 5 miles in the Problem Solving forum “Hi All, We''re told that 2/3 of the roads from A to B are at least 5 miles long, and 1/4 of the roads from B to C are at least 5 miles long. We''re asked if you randomly pick a road from A to B and then randomly pick a road from B to C, what is the probability that AT LEAST one of the roads you ...” July 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to OG2015 DS If n + k = m in the Data Sufficiency forum “Hi All, We''re told that N + K = M. We''re asked for the value of K. If you''re familiar with ''system math'', then the given equation might make you think of a specific Algebra rule: with 3 variables, I would need 3 unique equations to solve for EACH variable. While that rule is true, it''s ...” July 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to OG2015 DS n, 15, 12, 9, in the Data Sufficiency forum “Hi All, We''re given a list of 5 values: N, 15, 12, 9, and 20. We''re asked for the value of N. 1) N > 12 With the information in Fact 1, we know that N could be ANY value greater than 12, but that gives us an infinite number of possible values for N. Fact 1 is INSUFFICIENT 2) ...” July 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to drama club: percentage female members in the Data Sufficiency forum “Hi All, We''re asked what percent of the drama club members enrolled at a certain school are female students. This question can be solved in a number of different ways; you''ll find that a bit of logic (and some basic note-taking to keep track of your deductions) is all that''s needed to get to ...” July 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to When the positive integer x is divided by 11 in the Problem Solving forum “Hi VJesus12, We''re told that... X/11 = Y remainder 3 X/19 = something remainder 3 With the first piece of information, we know that X is 3 greater than a multiple of 11; with the second piece of information, we know that X is 3 greater than a multiple of 19. To have a remainder of 3 ...” July 26, 2018 Rich.C@EMPOWERgmat.com posted a reply to A taxi charges d dollars for the first two miles and c cents in the Problem Solving forum “Hi All, We''re told that a taxi charges D DOLLARS for the first 2 MILES and C CENTS per QUARTER-MILE for every mile after the first 2 miles. Which equation describes cost of a taxi ride of N miles in dollars. This question can be solved conceptually (with Algebra) or by TESTing VALUES. IF.... ...” July 26, 2018 Rich.C@EMPOWERgmat.com posted a reply to The youngest of 4 children has siblings who are 3, 5, and 8 in the Problem Solving forum “Hi All, We''re told that the YOUNGEST of 4 children has siblings who are 3, 5, and 8 years OLDER than she is and that the average age of the 4 siblings is 21. We''re asked for the age of the youngest sibling. This question can be solved by TESTing THE ANSWERS. Since the average age is 21 and ...” July 26, 2018 Rich.C@EMPOWERgmat.com posted a reply to Can the positive integer y be expressed as the product of in the Data Sufficiency forum “Hi All, We''re told that Y is a positive integer. We''re asked if Y can be expressed as the PRODUCT of two integers, each of which is greater than 1. This is a YES/NO question and can be solved by TESTing VALUES. To start, this question has a ''logic shortcut'' built into it. For a number to be ...” July 25, 2018 Rich.C@EMPOWERgmat.com posted a reply to If the ratio of the volumes of two right circular cylinders in the Problem Solving forum “Hi All, We''re told that two right circular cylinders have the SAME height and the ratio of their volumes is given by 64/9. We''re asked for the ratio of their radii. Volume of a cylinder = (pi)(R^2)(H) Since the cylinders have the SAME height, that value (whatever it is) doesn''t impact ...” July 25, 2018 Rich.C@EMPOWERgmat.com posted a reply to ABC Car Company wants to manufacture a new car known as in the Problem Solving forum “Hi All, We''re told that a Car Company wants to manufacture a new car known as Model X, and it is trying to determine how many cars it needs to sell in order to make an annual profit of$30,500,000, the annual fixed costs for Model X total $50,200,000 and each Model X car has an average cost of ...” July 25, 2018 Rich.C@EMPOWERgmat.com posted a reply to A bus trip of 450 miles would have taken 1 hour less if the in the Problem Solving forum “Hi All, We''re told that a bus trip of 450 miles would have taken 1 hour LESS if the average speed S for the trip had been GREATER by 5 miles per hour. We''re asked for the average speed S, in miles per hour, for the trip. This question can be solved in a couple of different ways, including by ...” July 25, 2018 Rich.C@EMPOWERgmat.com posted a reply to If r and s are integers, is r divisible by 7? in the Data Sufficiency forum “Hi All, We''re told that R and S are INTEGERS. We''re asked if R is divisible by 7. This is a YES/NO question and can be solved by TESTing VALUES (along with some knowledge of division). 1) The product (R)(S) is divisible by 7. IF... R=7 and S=1, then (R)(S) = 7 and the answer to the ...” July 24, 2018 Rich.C@EMPOWERgmat.com posted a reply to A tank containing water started to leak. Did the tank in the Data Sufficiency forum “Hi All, We''re told that a tank containing water started to leak. We''re asked if the tank contained MORE than 30 gallons of water when it started to leak. (Note: 1 gallon = 128 ounces). This is a YES/NO question. To start, the question can be rephrased as "did the tank contain MORE than ...” July 24, 2018 Rich.C@EMPOWERgmat.com posted a reply to Is the integer x divisible by 36 ? in the Data Sufficiency forum “Hi All, We''re told that X is an integer. We''re asked if X is divisible by 36. This is a YES/NO question and can be solved by TESTing VALUES. 1) X is divisible by 12. IF.... X = 12, then the answer to the question is NO. X = 36, then the answer to the question is YES. Fact 1 is ...” July 24, 2018 Rich.C@EMPOWERgmat.com posted a reply to Help me out in the Problem Solving forum “Hi Sharee7a, Are you currently studying for the GMAT or for some other type of Test? I ask because this question doesn''t have the ''feel'' of a typical GMAT question. In addition, since you didn''t include 5 answer choices, I would assume that this question is from a general ''math book'' and ...” July 23, 2018 Rich.C@EMPOWERgmat.com posted a reply to The sum of the heights of two high-rises is x feet. If the in the Problem Solving forum “Hi All, We''re told that the SUM of the heights of TWO high-rises is X feet and the first high rise is 37 feet taller than the second. We''re asked how tall the second high rise would be after an antenna is added (with a height of Z feet) to the top. This question can be solved in a couple of ...” July 22, 2018 Rich.C@EMPOWERgmat.com posted a reply to At the start of the day the amount of water in two identical in the Problem Solving forum “Hi All, We''re told that at the start of the day the amount of water in two identical buckets is 3 liters in bucket A and 2 liters in bucket B, X liters are then added to A and 4X liters are added to B so that the ratio of A to B is 3 to 10. We''re asked for the amount of water that has been ...” July 22, 2018 Rich.C@EMPOWERgmat.com posted a reply to The ratio of spinsters to cats is 2 to 7. If there are 25 in the Problem Solving forum “Hi All, We''re told that the ratio of spinsters to cats is 2 to 7 and that there are 25 MORE cats than spinsters. We''re asked for the number of spinsters. This question can be solved in a number of different ways, including by TESTing THE ANSWERS. Let''s TEST Answer B first. Answer B: 12 ...” July 22, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the units digit of positive integer p? in the Data Sufficiency forum “Hi All, We''re told that P is an integer. We''re asked for the UNITS DIGIT of P (re: the "ones digit"). This question can be solved by TESTing VALUES. 1) When P is divided by 10, the remainder is 8. IF.... P = 8, then 8/10 = 0 r 8 and the answer to the question is 8 P = 18, ...” July 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to How many of the 42 people in a group are employed students? in the Data Sufficiency forum “Hi All, We''re told that there are 42 people in a group. We''re asked for the number that are EMPLOYED STUDENTS. This is an example of an Overlapping Sets question - and while it''s typical to use the Overlapping Sets Formula or the Tic-Tac-Toe board to solve these types of question, this one ...” July 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to If a square's side is increased from 5 units long to 6 units in the Problem Solving forum “Hi All, We''re told a SQUARE''s side is increased from 5 units long to 6 units long. We''re asked for the percentage increase in the AREA of the square. Percentage Change = (New - Old)/(Old) Area of the "old" square = (5)(5) = 25 Area of the "new" square = (6)(6) = ...” July 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to A and B are two partially filled buckets of water. If 5 in the Problem Solving forum “Hi All, We''re told that A and B are two partially filled buckets of water; if 5 liters are transferred from A to B, then A would contain one-third of the amount of water in B, but if 5 liters are transferred from B to A, then B would contain one-half of the amount of water in A. We''re asked ...” July 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to On each lab that René completed he received either 100 in the Data Sufficiency forum “Hi All, We''re told that on each lab that René completed, he received either 100 points or 85 points. We''re asked for the number of labs did on which he scored 100 points. 1) René''s scores for his completed labs totaled 1140 points. At first glance, you might instinctively think that ...” July 19, 2018 Rich.C@EMPOWERgmat.com posted a reply to In the rectangular coordinate system above, if OP < PQ, in the Data Sufficiency forum “Hi All, We''re told that in the rectangular coordinate system above, OP < PQ. We''re asked if the area of region OPQ is greater than 48. This is a YES/NO question and it''s a great ''concept'' question, meaning that if you recognize the concepts involved, then you don''t actually have to do ...” July 19, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the probability that a 3-digit positive integer in the Problem Solving forum “Hi All, We''re asked for the probability that a 3-digit positive integer picked at random will have one OR MORE "7s" in its digits. This question can be approached in a couple of different ways. Sometimes though, the fastest way to get to the correct answer is with a bit of ''brute ...” July 19, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the value of 2x/3y? in the Data Sufficiency forum “Hi All, We''re asked for the value of 2X/3Y. This question can be solved by TESTing VALUES. 1) (X^2)/(Y^2) = 36/25 IF.... X=6, Y=5, then the answer to the question is 12/15 = 4/5 X=6, Y= -5, then the answer to the question is 12/-15 = -4/5 Fact 1 is INSUFFICIENT 2) X^5/Y^5 > ...” July 18, 2018 Rich.C@EMPOWERgmat.com posted a reply to What was the percent increase in population of City K from in the Data Sufficiency forum “Hi All, We''re asked for the percent increase in population of City K from 1980 to 1990. This question can be solved in a couple of different ways. If we knew the exact populations in 1980 and 1990, then that would be enough information to answer the question (since we could then use the Percent ...” July 18, 2018 Rich.C@EMPOWERgmat.com posted a reply to Wholesaler's profit in the Problem Solving forum “Hi All, We''re told that a wholesaler bought 1,200 radios for$18 each, sold 60 percent of the radios for $30 each and the rest for$15 each. We''re asked for the wholesaler’s AVERAGE (arithmetic mean) profit per radio. This question has a great ''math shortcut'' built into it that can help us ...”
July 18, 2018
Rich.C@EMPOWERgmat.com posted a reply to (x - 1)^2 = 400 -> ?? Positive square root quesiton in the Problem Solving forum
“Hi All, GMAT writers often provide little ''hints'' in the wording of the question that can help you to avoid some of the work. Here, notice the phrase "...which of the following COULD be the value...." That''s an interesting way to phrase a question - it''s NOT asking "...what IS ...”
July 17, 2018
Rich.C@EMPOWERgmat.com posted a reply to Total students in the Problem Solving forum
“Hi All, We''re given data on the "breakdown" of grades in a course: 1/5 are A''s, 1/4 are B''s, 1/2 are C''s, and the remaining 10 grades are D''s. We''re asked for the total number of students in the course. This question can also be solved by TESTing THE ANSWERS. To start, we need a ...”
July 17, 2018
Rich.C@EMPOWERgmat.com posted a reply to It costs g cents per mile for gasoline and m cents in the Problem Solving forum
“Hi VJesus12, We''re told that it costs G CENTS per mile for gasoline and M CENTS per mile for all other costs to run a car. We''re asked for the number of DOLLARS it will cost to run a car 200 miles. This question can be solved in a couple of different ways, including by TESTing VALUES. ...”
July 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to A factory that employs 1000 assembly line workers pays each in the Problem Solving forum
“Hi swerve, We''re told that a factory that employs 1000 assembly line workers pays each of these workers $5 per hour for the first 40 hours worked during a week and 1½ times that rate for hours worked in excess of 40. We''re asked for the total payroll for the assembly-line workers for a week ...” July 11, 2018 Rich.C@EMPOWERgmat.com posted a reply to How can I increase my GMAT score? in the GMAT Strategy forum “Hi Vidushi Dahiya, Those types of results in the Verbal section imply that you''re "winging it" when working through Verbal questions - and that you are probably not using a consistent set of Tactics when working through the Verbal section. 1) What "steps" do you go ...” July 10, 2018 Rich.C@EMPOWERgmat.com posted a reply to In a survey it was found that 60% of those surveyed liked in the Problem Solving forum “Hi swerve, We''re told that in a survey it was found that 60% of those surveyed liked honey, 40% of the people liked sugar and 30% liked both honey and sugar. If 100 people took the survey, we''re asked for the number who liked NEITHER honey nor sugar. This is an example of a standard ...” July 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to Rhoda tosses a coin 5 times. Find the probability of getting in the Problem Solving forum “Hi swerve, We''re told that Rhoda tosses a coin 5 times. We''re asked for the probability of getting exactly 4 heads. This question can be approached in a couple of different ways, including as a Permutation. Since each toss has 2 possible outcomes, with 5 tosses there would be (2)^5 = 32 ...” July 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 Greg assembles units of a certain in the Problem Solving forum “Hi All, We''re told that Greg assembles units of a certain product at a factory. Each day he is paid$2.00 per unit for the first 40 units that he assembles and $2.50 for each additional unit that he assembles that DAY. If Greg assembled at least 30 units on each of two days and was paid a total ...” July 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 During a recent storm, 9 in the Problem Solving forum “Hi All, We''re told that during a recent storm, 9 neighborhoods experienced power failures of durations 34, 29, 27, 46, 18, 25, 12, 35, and 16 minutes, respectively. We''re asked for the MEDIAN duration, in minutes, of these power failures. The word "median" is a statistical term that ...” July 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to Each of three charities in Novel Grove Estates has 8 persons in the Problem Solving forum “Hi All, We''re told that each of three charities in Novel Grove Estates has 8 persons serving on its board of directors and EXACTLY 4 persons serve on 3 boards each and each pair of charities has 5 persons in common on their boards of directors. We''re asked for the number of distinct persons ...” July 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 (1/2 - 1/3) + (1/3-1/4) in the Problem Solving forum “Hi All, When a GMAT question presents what appears to be a ''step heavy'' calculation to you, it''s important to remember that the Quant section of the GMAT is NOT a ''math test''; it''s a ''critical thinking'' test that requires lots of little calculations as you work through it. Here, while it ...” July 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to Set T consists of all points (x, y) such that x^2+y^2=1. in the Problem Solving forum “Hi All, This question is fairly ''high-concept'', but you can solve it with a drawing and a bit of logic. When you graph the equation X^2 + Y^2 = 1, you will have a circle with a radius of 1 that is centered around the Origin. There are only four points on that circle that are integer ...” July 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to The product of the first twelve positive integers is in the Problem Solving forum “Hi All, We''re told to take the PRODUCT of the first 12 positive integers. We''re asked which of the following is NOT divisible into that product. This question is best handled with Prime Factorization. To start, the GMAT would never expect you to actually calculate a product that was so big, ...” July 9, 2018 Rich.C@EMPOWERgmat.com posted a reply to There are twice as many dog owners as cat owners, and the in the Problem Solving forum “Hi All, We''re told that there are TWICE as many dog owners as cat owners, the number of owners of both animals is DOUBLE the number of owners that own only a cat and 200 owners own BOTH animals. We''re asked for the number of owners who own only a dog. Sometimes GMAT questions are really just ...” July 6, 2018 Rich.C@EMPOWERgmat.com posted a reply to Two cyclists start biking from a trail's start 3 hours in the Problem Solving forum “Hi All, We''re told that two cyclists start biking from a trail''s start 3 hours apart; he second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. We''re asked how much time will pass before the second cyclist catches up with ...” July 6, 2018 Rich.C@EMPOWERgmat.com posted a reply to If the least common multiple of positive integer in the Problem Solving forum “Hi VJesus12, We''re told that the least common multiple of positive integers M and N is 120 and M:N=3:4. We''re asked for the greatest common factor of M and N. If you don''t immediately see how to best approach a question, then you should consider ''brute force'' - so you can then define what ...” July 4, 2018 Rich.C@EMPOWERgmat.com posted a reply to A pet shop runs a sale on goldfish and platys. in the Problem Solving forum “Hi All, We''re told that a pet shop runs a sale on goldfish and platys, one customer buys 13 goldfish and 12 platys for$5.60, while another buys 14 goldfish and 21 platys for $8.05. We''re asked for the ratio of the price of a goldfish to the price of a platys. This question can be solved in a ...” July 4, 2018 Rich.C@EMPOWERgmat.com posted a reply to Machine A produces bolts at a uniform rate of 120 every 40 in the Problem Solving forum “Hi All, We''re told that Machine A produces bolts at a uniform rate of 120 every 40 seconds and Machine B produces bolts at a uniform rate of 100 every 20 seconds. We''re asked if the two machines run simultaneously, how many seconds will it take for them to produce a total of 200 bolts. The ...” July 4, 2018 Rich.C@EMPOWERgmat.com posted a reply to Possible to score a 720+ in 6 weeks of full-time study? in the GMAT Strategy forum “Hi dawncheadle, You seem prepared for the possibility that you might need more study time that you''ve currently planned for, so we can proceed with the idea that you would have about 2 months of study time (although you might need more than that). If you''re already enrolled in a Course, ...” July 4, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 The research funds of a certain in the Data Sufficiency forum “Hi All, We''re told that the research funds of a certain company were divided among three departments, X, Y, and Z. We''re asked which one of the three departments received the greatest proportion of the research funds. This question can be solved in a number of different ways, including by ...” July 3, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the median of 15 integers? in the Data Sufficiency forum “Hi vinni.k, We''re asked for the MEDIAN of 15 integers. To find the median of a group of numbers, we must put them in ''order'' from least to greatest. With 15 integers, the median would be the ''8th'' number in that row. 1) Exactly seven of the numbers are greater than 7. With the ...” July 3, 2018 Rich.C@EMPOWERgmat.com posted a reply to An instructor scored a student's test of 50 questions by in the Problem Solving forum “Hi All, We''re told that an instructor scored a student’s test of 50 questions by subtracting 2 times the number of incorrect answers from the number of correct answers and that the student answered all of the questions and received a score of 38. We''re asked for the number of questions the ...” July 3, 2018 Rich.C@EMPOWERgmat.com posted a reply to Possible to score a 720+ in 6 weeks of full-time study? in the GMAT Strategy forum “Hi dawncheadle, To start, a 560 is a solid initial CAT Score (the average score on the Official GMAT hovers around 540-550 most years). That having been said, many Test Takers spend 3 months (or more) of consistent study time before they hit their ''peak'' scores, so there might be an issue with ...” July 3, 2018 Rich.C@EMPOWERgmat.com posted a reply to A polling company reports that there is a 40% chance that in the Problem Solving forum “Hi All, We''re told that a polling company reports that there is a 40% chance that a certain candidate will win the next election. If the candidate wins, there is a 60% chance that she will sign Bill X and no other bills. If she does not to sign Bill X, she will sign either Bill Y or Bill Z, ...” July 1, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 A retailer purchased eggs in the Problem Solving forum “Hi All, We''re told that a retailer purchased eggs at$2.80 per dozen and sold the eggs at 3 eggs for $0.90. We''re asked for the retailer''s gross profit from purchasing and selling 5 dozen eggs(1 dozen eggs = 12 eggs). There are a couple of different ways to go about doing the work here (and a ...” July 1, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 A certain restaurant that regularly in the Problem Solving forum “Hi All, We''re told that a certain restaurant that regularly advertises through the mail has 1,040 cover letters and 3,000 coupons in stock and that in its next mailing, each envelope will contain 1 cover letter and 2 coupons. We''re asked if ALL of the cover letters in stock are used, then how ...” June 30, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 Each week, a clothing salesperson in the Problem Solving forum “Hi All, We''re told that each week, a clothing salesperson receives a commission equal to 15% of the FIRST$500 in sales and 20% of all ADDITIONAL sales that week. We''re asked for the total commission on sales for the week of \$1,300. This question comes down to a bit of note-taking and some ...”
June 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 During a trip that they in the Problem Solving forum
“Hi All, We''re told that during a trip that they took together, Carmen, Juan, Maria, and Rafael drove an average (arithmetic mean) of 80 miles each; Carmen drove 72 miles, Juan drove 78 miles, and Maria drove 83 miles. We''re asked how many miles Rafael drove. This question can be solved in a ...”
June 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to The number of defects in the first five cars to come through in the Problem Solving forum
“Hi swerve, We''re told that the number of defects in the first five cars to come through a new production line are 9, 7, 10, 4, and 6, respectively and that the sixth car through the production line has either 3, 7, or 12 defects. We''re asked which of the following three values does the MEAN ...”
June 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to On a business trip, 30 percent of 60 sales representatives in the Problem Solving forum
“Hi swerve, We''re told that 30% of 60 sales representatives will be given accommodations at Hotel XYZ and the remaining 70% will be given accommodations at Hotel ABC. However, 55% of the sales representatives prefer to stay at Hotel XYZ and 45% prefer to stay at Hotel ABC. We''re asked for the ...”
June 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to Tips for correcting careless mistakes in GMAT quant section in the GMAT Math forum
“Hi AE11, In most cases, the ''cause'' of silly mistakes is a lack of proper note-taking. Doing work "in your head" is NEVER the best way to approach a question (and over time, it''s remarkably inefficient - working in that way will end up costing you lots of time AND points). Before I ...”
June 30, 2018