# negi00000

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 ...”
Today
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 ...”
Yesterday
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 ...”
Yesterday
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 Rich.C@EMPOWERgmat.com posted a reply to Please help to crack GMAT ..... in the The GMAT Avengers Study Group forum “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
“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
“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
Rich.C@EMPOWERgmat.com posted a reply to GMAT Official Guide 2019 [The table shows a summary] in the Problem Solving forum
“Hi All, We''re told that the table shows a summary of the ticket sales from four performances of a certain play. We''re asked for the DIFFERENCE between the MAXIMUM and the MINIMUM ticket-sale revenue from a single performance. This question comes down to a little analysis of the given data and ...”
June 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to What is the lowest positive integer that is divisible by in the Problem Solving forum
“Hi VJesus12, We''re asked for the SMALLEST positive integer that is divisible by each of the EVEN integers between 1 and 10, inclusive. This question can be solved rather easily by TESTing THE ANSWERS. Since we''re asked for the SMALLEST number, we should start with Answer A and then work our ...”
June 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to Question: If a apple costs c cents, how many apples in the Problem Solving forum
“Hi VJesus12, We''re told that A apples costs C cents. We''re asked for the number of apples that can be bought for D dollars. This question can be solved by TESTing VALUES. IF... A=2, C=100 and D=1 Then 2 apples cost 100 cents... meaning each apple costs 1/2 dollar. By spending 1 dollar, we ...”
June 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to How to Practice for Questions you Get Wrong? in the GMAT Math forum
“Hi Mrrinali, From your post, it sounds like you are just beginning your studies. Is that the case (or have you studied for some time before now?)? 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 ...”
June 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to UCLA Extension Classes? in the GMAT Strategy forum
“Hi dacoffee, You ask a number of good questions; they are essentially Admissions questions though, so you would likely find it useful to ask an Admissions Expert. There''s a forum full of those Experts here: https://www.beatthegmat.com/ask-an-mba-admissions-consultant-f40.html With an EMBA, ...”
June 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a certain fraction, the in the Problem Solving forum
“Hi All, We''re told that In a certain fraction, the denominator is 16 GREATER than the numerator and that the fraction is the equivalent to 80 percent. We''re asked for the DENOMINATOR of the fraction. This question can be solved rathe easily by TESTing THE ANSWERS. To start, we have... ...”
June 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to A fence consists of m lengths of fence that are each n feet in the Problem Solving forum
“Hi All, We''re told that a fence consists of M lengths of fence that are each N feet long and a fence post separates each length of fence by its width of X feet. We''re asked for the total length of the fence, including the fence posts on each end. This question can be solved by TESTing VALUES. ...”
June 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to Allison and Barbara are part of an 8-member dance troupe. in the Problem Solving forum
“Hi swerve, We''re told that Allison and Barbara are part of an 8-member dance troupe and that the troupe will be divided into two 4-person ensembles (with each ensemble performing a specialized dance). We''re asked for the fraction of all the possible ensembles that include Allison AND Barbara. ...”
June 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to A train travels from city A to city B. The average speed of in the Problem Solving forum
“Hi swerve, We''re told that a train travels from city A to city B, the average speed of the train is 60 m/hr and it travels the first quarter of the distance at a speed of 90 m/hr. We''re asked for the speed of the train over the remaining distance. This question can be solved in a couple of ...”
June 27, 2018
Rich.C@EMPOWERgmat.com posted a reply to Scored 400 in my GMAT practice exam. Studied for 10 days in the I just Beat The GMAT! forum
“Hi svartika10, You''ve named some highly-competitive Schools, so a strong GMAT Score AND a strong OVERALL profile will be a must. I''ll be happy to answer any GMAT questions that you might have; for Admissions Advice, you would likely find it useful to discuss your profile and plans with an ...”
June 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to Mike's pencil box contains 30 pens. 15 of the pens are red in the Data Sufficiency forum
“Hi All, We''re told that Mike''s pencil box contains 30 pens, 15 of the pens are red, and all of the others are either blue OR black. We''re asked if Mike were to choose a random pen from the pencil box, what is the probability that it would be BLUE. This question can be approached in a couple ...”
June 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to What is 20% of 3x? in the Data Sufficiency forum
“Hi Gmat_mission, We''re asked for the value of 20% of 3X. This question involves a great Algebra ''shortcut'' that you can use to avoid doing lots of math. To answer this question, we need to know the value of X. 1) 40% of 6X equals 12 The information in Fact 1 allows us to create 1 ...”
June 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to Scored 400 in my GMAT practice exam. Studied for 10 days in the I just Beat The GMAT! forum
“Hi svartika10, Many Test Takers spend 3 months (or more) of consistent study time before they hit their ''peak'' scores, so this initial score isn''t too bad if you''ve only been studying for 10 days. Raising a 400 to a 750+ will be a challenging task - and you''ll have to make significant ...”
June 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to Frank has a box containing 6 doughnuts: 3 jellies and 3 in the Problem Solving forum
“Hi All, We''re told that Frank has a box containing 6 doughnuts: 3 jellies and 3 cinnamon twists - and that Frank eats 3 doughnuts (chosen randomly from the box). We''re asked for the probability that he eats the 3 jelly doughnuts. This question can be solved as a Combination Formula question or ...”
June 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain man can row a boat at 12 miles per hour in still in the Problem Solving forum
“Hi swerve, We''re told that a certain man can row a boat at 12 miles per hour in still water, but he is rowing against an 8 miles per hour current. We''re asked how long it will take him to row 6 miles. Since he is rowing AGAINST a current, his speed will be DECREASED by 8 miles/hour. Thus, ...”
June 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to Bob and Alice can finish a job together in 3 hours. in the Problem Solving forum
“Hi swerve, We''re told that Bob and Alice can finish a job together in 3 hours and that Bob can do the job by himself in 5 hours. We''re asked for the percent of the job that Alice does. This is an example of a "Work Formula" question - when you have two entities working together on a ...”
June 25, 2018
Rich.C@EMPOWERgmat.com posted a reply to At 660-680, how much of an increase is realistic in the GMAT Strategy forum
“Hi vy65, To start, both a 660 and 680 are really strong initial CAT Scores (the average score on the Official GMAT hovers around 540-550 most years). Since you''ve been studying for just 2 weeks, you could potentially improve a great deal, if we can define your strengths and weaknesses and you ...”
June 25, 2018
Rich.C@EMPOWERgmat.com posted a reply to if the slope l is 3 in the Problem Solving forum
“Hi Chrunos, While the the two ''graphing'' rules that you''re asking about are relatively rare on the GMAT, they each have the potential to show up on Test Day, so they''re worth knowing. 1) Parallel lines have the SAME slope. So since the original line has a slope of 3, a parallel line would ...”
June 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to Profile Evaluation Required For Top MIM in the I just Beat The GMAT! forum
June 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to OG Mixtures Problem in the Problem Solving forum
“Hi All, We''re told that seed mixture X is 40 percent ryegrass and 60 percent bluegrass by weight, seed mixture Y is 25 percent ryegrass and 75 percent fescue and a mixture of X and Y contains 30 percent ryegrass. We''re asked for the percentage of the weight of the mixture that is seed X. This ...”
June 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to OG PS #171 - Easy Sequence Question! in the Problem Solving forum
“Hi All, We''re told that a sequence 2, 4, 7... is defined by the following: the Nth term is N + 2^(N - 1). We''re asked for the the difference between the sixth and the fifth terms of the sequence. While sequence questions can sometimes look complex, they generally involve basic Arithmetic ...”
June 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to Confusing wording in the Problem Solving forum
“Hi All, We''re asked for the number of prime numbers between 1 and 100 that are factors of 7,150. Based on the Answers, there will be at least one - but no more than five - prime numbers, so a bit of ''brute force'' Arithmetic is really all that''s needed to answer this question. To start, ...”
June 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to Need Advice... scored 580 on 1st GMAT, goal is 700 Help! in the GMAT Strategy forum
“Hi Conor, I''ll be happy to analyze your ESR for you; you can either PM or email it to me. Considering the drop in both your Quant and Verbal Scaled Scores on Test Day (relative to your practice CAT Scores), I''d like to know a bit more about how you took your CATs: 1) Which of these CATs ...”
June 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to If a represents a single digit and the four digit in the Problem Solving forum
“Hi VJesus12, We''re told that "A" represents a single digit and the four digit integer A12A is divisible by 6. We''re asked for the value of A. This question can be solved with a mix of Number Property Rules and TESTing THE ANSWERS. To start, if you weren''t sure how to do anything ...”
June 21, 2018
Rich.C@EMPOWERgmat.com posted a reply to It costs x dollars each to make the first 1,000 copies of in the Problem Solving forum
“Hi VJesus12, We''re told that it costs X dollars each for the first 1,000 copies of a compact disc and Y dollars to make each subsequent copy. If Z is greater than 1,000, how many dollars will it cost to make Z copies of the compact disc. This question can be solved by TESTing VALUES. IF... ...”
June 21, 2018
Rich.C@EMPOWERgmat.com posted a reply to Need Advice... scored 580 on 1st GMAT, goal is 700 Help! in the GMAT Strategy forum
“Hi conorpope93, 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) How long have you studied? 2) What study materials have you used so far? 3) How have you ...”
June 21, 2018
Rich.C@EMPOWERgmat.com posted a reply to A store reported (OG2016) in the Problem Solving forum
“Hi All, We''re told that a store reported total sales of $385 million for February of this year and the total sales for the same month last year was$320 million. We''re asked for the approximate percent increase in sales. This question can be solved in a couple of different ways, including ...”
June 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to Last year 26 members of a certain club traveled to England in the Problem Solving forum
“Hi All, We''re told that last year 26 members of a certain club traveled to England, 26 members traveled to France, and 32 members traveled to Italy and that NO members of the club traveled to both England and France, 6 members traveled to both England and Italy, and 11 members traveled to both ...”
June 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to Jackie has two solutions (OG20160 in the Problem Solving forum
“Hi All, This is essentially a Weighted Average question, but it can be solved in a variety of different ways. Since the answer choices are "spread out" numbers, there''s actually a great ''brute force'' approach that you can use to logically answer this question without doing that much ...”
June 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to three-digit code in the Problem Solving forum
“Hi All, We''re told that a three-digit code for certain logs uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 according to the following constraints: the first digit CANNOT be 0 or 1, the second digit MUST be 0 or 1, and the second and third digits CANNOT BOTH be 0 in the same code. We''re asked for ...”
June 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to Applied problems in the Problem Solving forum
“Hi All, We''re told that the total cost for Company X to produce a batch of tools is $10,000 plus$3 per tool and that each tool sells for $8. The gross proﬁt earned from producing and selling these tools is the total income from sales minus the total production cost and a batch of 20,000 ...” June 19, 2018 Rich.C@EMPOWERgmat.com posted a reply to Working simultaneously and independently at an identical con in the Problem Solving forum “Hi All, We''re told that working simultaneously and independently at an identical constant rate, 4 machines of a certain type can produce a total of X units of product P in 6 days. We''re asked for the number of machines that would be needed, working simultaneously and independently at this ...” June 18, 2018 Rich.C@EMPOWERgmat.com posted a reply to In the xy-plane in the Problem Solving forum “Hi All, We''re given a line in the xy-plane with equation 3X + 7Y = 9. We''re asked for the SLOPE of that line. When given an equation of this type, the easiest way to find the slope of the line is to ''rewrite'' the equation in "slope-intercept'' format (re: write the equation so that the ...” June 18, 2018 Rich.C@EMPOWERgmat.com posted a reply to rectangles in the Problem Solving forum “Hi All, We''re told that the figure shown consists of four differently rectangles, EACH of which has length L and width W and the area of the painting is 4,800 square inches. We''re asked for the width, in inches, of each of the four rectangles. This question can be solved by TESTing VALUES. ...” June 18, 2018 Rich.C@EMPOWERgmat.com posted a reply to OG answer might be wrong - in the GMAT Math forum “Hi amogha_cs21, We''re told that Pat SAVED$600 of his earnings last month. We''re asked how much Pat EARNED last month. 1) Pat spent 1/2 of his earnings last month for living expenses and saved 1/3 of the remainder. Since we already know that Pat SAVED $600 last month, we can ''work ...” June 18, 2018 Rich.C@EMPOWERgmat.com posted a reply to OG IF m and p are positive integers in the Problem Solving forum “Hi All, We''re told that If M and P are POSITIVE INTEGERS and M^2 + P^2 < 100. We''re asked for the GREATEST possible value of (M)(P). This question can be solved in a couple of different ways, including by TESTing VALUES. Since the question asks for the greatest possible PRODUCT of M and P, ...” June 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to Company P in the Problem Solving forum “Hi All, We''re told that Company P had 15 percent MORE employees in December than it had in January and that Company P had 460 employees in December. We''re asked for the number of employees it had in January. This question can be solved rather easily by TESTing THE ANSWERS (as Mitch has shown). ...” June 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to sqrt(80) + in the Problem Solving forum “Hi All, We''re asked for the value of √80 + √125. This question comes down to some standard Radical rules (which you will likely be asked to use 1-2 times on Test Day). You likely already know a number of perfect squares already (1, 4, 9, 16, 25, etc.), so you can square-root each of ...” June 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the units digit of positive integer p? in the Data Sufficiency forum “Hi AAPL, 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, ...” June 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to Is a < 2? in the Data Sufficiency forum “Hi nidhips, Co-ordinate Geometry/Graphing is a relatively rare subject on the GMAT; you''ll likely see it just once on Test Day. In that same way, the task of graphing circles is a rare task within a rare category, so you probably won''t need any special knowledge on that subject when you take ...” June 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to A, B, C are three consecutive positive integers (A>B>C in the Problem Solving forum “Hi All, We''re told that A, B, C are three consecutive positive integers and A > B > C. We''re asked for the value of the expression (2A +B +3C). This question can be solved rather easily by TESTing VALUES (as Mitch has shown). You could also approach it Algebraically. Since the three ...” June 16, 2018 Rich.C@EMPOWERgmat.com posted a reply to Is x > 0 ? in the Data Sufficiency forum “Hi VJesus12, We''re asked if X is greater than 0. This is a YES/NO question and can be approached in a couple of different ways, including by using Number Properties. 1) X < X^2 For X^2 to be greater than X, there are 2 possibilities: 1) X is ANY negative number... at which point the ...” June 15, 2018 Rich.C@EMPOWERgmat.com posted a reply to In the x-y plane, the coordinates of three consecutive in the Problem Solving forum “Hi nidhips, To start, you should notice that the questions asks what "could" be the co-ordinate (not "what is" the co-ordinate). This means that there will almost certainly be multiple correct answers to this question - but only one of the 5 given answers is correct. If ...” June 15, 2018 Rich.C@EMPOWERgmat.com posted a reply to What number is 23 more than three-fourth of itself? in the Problem Solving forum “Hi VJesus12, We''re asked for the number that is 23 more than three-quarters of itself. Many Test Takers would likely solve this question Algebraically (which is fine), but you can also solve it with a little Arithmetic and TESTing THE ANSWERS. To start, if a number is 23 more than 3/4 of ...” June 15, 2018 Rich.C@EMPOWERgmat.com posted a reply to On a road, three consecutive traffic lights change after in the Problem Solving forum “Hi All, We''re told that three consecutive traffic lights change after 36, 42 and 72 seconds respectively and that the lights are first switched on at 9:00 A.M. We''re asked at what time the three will change simultaneously. This question has a couple of great ''shortcuts'' built into it that ...” June 15, 2018 Rich.C@EMPOWERgmat.com posted a reply to OG2018 PS In the figure shown in the Problem Solving forum “Hi All, We''re told that in the figure shown, AC = 2 and BD = DC = 1. We''re asked for the measure of angle ABD. To start, we know that the drawing is not to scale, so we cannot use the shapes in the picture to estimate an answer. However, we can use any numbers/variables that appear in the ...” June 13, 2018 Rich.C@EMPOWERgmat.com posted a reply to OG Line L lies in the xy-plane and does not pass through in the Data Sufficiency forum “Hi All, We''re told that Line L lies in the xy-plane and does NOT pass through the origin. We''re asked for the slope of line L. This question can be solved by TESTing VALUES (and drawing a few pictures as needed). 1) The X-intercept of line L is TWICE the Y-intercept of line L. With the ...” June 13, 2018 Rich.C@EMPOWERgmat.com posted a reply to For a certain city's library, the average cost in the Data Sufficiency forum “Hi All, We''re told that for a certain city''s library, the average cost of purchasing each new book is$28, the library receives $15,000 from the city each year and the library also receives a bonus of$2,000 if the total number of items checked out over the course of the year exceeds 5,000. ...”
June 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to A 75-liter solution of cool-drink is made from 8% jasmine in the Problem Solving forum
“Hi All, We''re told that a 75-liter solution of cool-drink is made from 8% jasmine water and that 3 liters of jasmine and 12 liters of water were added to the solution. We''re asked what percent of the new mixture is jasmine. This question can be solved as a Weighted Average. To start, we ...”
June 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to Probability of not selecting something in the Problem Solving forum
“Hi All, We''re told that in a box of 12 pens, a total of 3 are defective and that a customer buys 2 pens selected at random from the box. We''re asked for the probability that neither pen will be defective. This question can be solved in a couple of different ways; treating it as a step-by-step ...”
June 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to OG Clarissa will create her summer reading list in the Problem Solving forum
“Hi All, We''re told that Clarissa will create her summer reading list by randomly choosing 4 books from the 10 books approved for summer reading and she will list the books in the order in which they are chosen. We''re asked for the number of different lists that are possible. The ''math'' ...”
June 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to Problem Solving - Q in the Problem Solving forum
“Hi All, We''re told that N is an integer greater than 6. We''re asked which of the following MUST be divisible by 3. This question can be solved rather easily by TESTing VALUES (as Mitch has shown). There''s also a Number Property ''shortcut'' built into this question that you can take advantage ...”
June 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to NP Decimals in the Problem Solving forum
“Hi All, We''re asked for the value (0.0036)(2.8) / (0.04)(0.1)(0.003) When dealing with lots of decimals, you might find it easiest to deal with one ''small calculation'' at a time. It''s worth noting that you can multiply the ''top'' and ''bottom'' of a fraction by the same number and the ...”
June 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to Arithmetic Percents in the Problem Solving forum
“Hi All, We''re told that yesterday''s closing prices of 2420 different stocks listed on a certain stock exchange were ALL DIFFERENT from today''s closing prices and that the number of stocks that closed at a higher price today than yesterday was 20% greater than the number that closed at a lower ...”
June 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to R = ? in the Problem Solving forum
“Hi All, We''re told that P ≠ 0 and P - (1 - P^2)/P = R/P. We''re asked for the value of R. This question can be solved in a couple of different ways, including by TESTing VALUES. IF....P=2, then we have.... 2 - D GMAT assassins aren''t born, they''re made, Rich”
June 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to OG2016 - fractions in the Problem Solving forum
“Hi All, We''re asked for the value 1/(1+1/3) - 1/ (1+1/2). Most Test Takers would use standard Arithmetic to answer this question (which is fine). By ''converting'' the fractions though, you can get the solution with a little logic and not that much math... 1/(1+1/3) = 1/1.333 1/ (1+1/2) = ...”
June 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to OG Abdul, Barb and Carlos in the Problem Solving forum
“Hi All, We''re told that Abdul, Barb, and Carlos all live on the same straight road, on which their school is also located, the school is HALFWAY between Abdul’s house and Barb’s house and Barb’s house is HALFWAY between the school and Carlos’s house. We''re asked - if the school is 4 ...”
June 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to Currently, y percent of the members on the finance committee in the Problem Solving forum
“Hi All, We''re told that Y percent of the members on the finance committee are women and next month, Z percent of the men on the finance committee will resign. If no other personnel changes occur, then after the resignations next month, the men who remain on the finance committee will represent ...”
June 9, 2018
Rich.C@EMPOWERgmat.com posted a reply to Train X leaves New York at 1 A.M. and travels east at a in the Problem Solving forum
“Hi All, We''re told that Train X leaves New York at 1 A.M. and travels east at a speed of X miles per hour and train Z leaves New York at 2 A.M. and also travels east on the same route. We''re asked at what rate of speed train Z will have to travel in order to catch train X at exactly 5:30 A.M. ...”
June 9, 2018
Rich.C@EMPOWERgmat.com posted a reply to Speed/Distance in the Problem Solving forum
“Hi vaibhav101, We''re told that John jogs 9 km at a speed of 6 km/hr. We''re asked at what speed he would need to jog during the next 1.5 hrs to have an average speed of 9 km/hr for the entire jogging session. This is an example of a Weighted Average question - and since we''re given all of the ...”
June 8, 2018
Rich.C@EMPOWERgmat.com posted a reply to 12 years out of college, GMAT study plan? in the GMAT Strategy forum
“Hi KDR83, The slight variations in your Quant and Verbal Scaled Score notwithstanding, you certainly appear to be performing at this new higher ''level'', so you should stick with your current study approach. To make sure that your CAT results continue to be as realistic as possible, you should ...”
June 8, 2018
Rich.C@EMPOWERgmat.com posted a reply to At a certain organisation, the number of in the Problem Solving forum
“Hi All, We''re told that at a certain organization, the number of male members went up by 12% in the year 2001 from the year 2000, the number of females members went down by 6% in the same time period and the total membership at the organization went up by 1.2% from the year 2000 to 2001. We''re ...”
June 8, 2018
Rich.C@EMPOWERgmat.com posted a reply to A rectangular tiled patio is composed of 70 square tiles. in the Problem Solving forum
“Hi M7MBA, We''re told that a rectangular tiled patio is composed of 70 square tiles. The rectangular patio will be rearranged so that there will be 2 FEWER columns of tiles and 4 MORE rows of tiles and after the change in layout, the patio will still have 70 tiles, and it will still be ...”
June 8, 2018
Rich.C@EMPOWERgmat.com posted a reply to In the x-y plane, the coordinates of three consecutive in the Problem Solving forum
“Hi BTGmoderatorLU, We''re told that in the x-y plane, the coordinates of three consecutive vertices of a rectangle are (2A, B), (-2A, B), (-2A, -3B), A and B are both INTEGERS with A < 0 and B > 0. We''re asked which of the following COULD be the coordinates of the fourth vertex? TESTing ...”
June 8, 2018
Rich.C@EMPOWERgmat.com posted a reply to 12 years out of college, GMAT study plan? in the GMAT Strategy forum
“Hi KDR83, Since there are 6 Official GMAC CATs, you shouldn''t worry about ''wasting'' one of them. That having been said, if you wanted to wait a couple of days before taking that next CAT, then that shouldn''t be a problem (nor would pushing off on taking an Official CAT and take an MGMAT CAT ...”
June 8, 2018
Rich.C@EMPOWERgmat.com posted a reply to At the beginning of February, the ratio of goats to pigs on in the Data Sufficiency forum
“Hi vinni.k, We''re told that at the beginning of February, the ratio of goats to pigs on a certain farm was 7 to 6 - meaning that the number of goats MUST be a multiple of 7 and the number of pigs MUST be a multiple of 6 (for example, 7 goats and 6 pigs, 14 goats and 12 pigs, 21 goats and 18 ...”
June 7, 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 > 1 ...”
June 7, 2018
Rich.C@EMPOWERgmat.com posted a reply to If ab ≠ 0, does a=b? in the Data Sufficiency forum
“Hi All, We''re told that (A)(B) ≠ 0. We''re asked if A = B. This is a YES/NO question. We can solve it by TESTing VALUES. 1) X^A = X^B IF... X=1, A=1, B=1, then the answer to the question is YES. X=1, A=1, B= -1, then the answer to the question is NO. Fact 1 is INSUFFICIENT 2) ...”
June 7, 2018
Rich.C@EMPOWERgmat.com posted a reply to In the x-y plane, the coordinates of three consecutive in the Problem Solving forum
“Hi BTGmoderatorLU, We''re told that in the x-y plane, the coordinates of three consecutive vertices of a rectangle are (2A, B), (-2A, B), (-2A, -3B), A and B are both INTEGERS with A < 0 and B > 0. We''re asked which of the following COULD be the coordinates of the fourth vertex? TESTing ...”
June 6, 2018
Rich.C@EMPOWERgmat.com posted a reply to 12 years out of college, GMAT study plan? in the GMAT Strategy forum
“Hi KDR83, Given this improvement in your CAT Scores, it might be that continuing to (re)familiarize yourself with all of the content will help you to continue to improve. As such, I suggest that you continue to study as you like for the next couple of weeks, then take a new, FULL-LENGTH CAT. ...”
June 6, 2018
Rich.C@EMPOWERgmat.com posted a reply to Need Advice in profile evaluation & analyse mistake in G in the I just Beat The GMAT! forum
“Hi sudave, The process of applying to (and ultimately attending) Business School will require a big investment of time, money and energy on your part, so you really should make sure that the Programs that you apply to match YOUR career goals/needs. There are a variety of factors that go into ...”
June 6, 2018
Rich.C@EMPOWERgmat.com posted a reply to If P, Q, and R are distinct positive digits and the product in the Problem Solving forum
“Hi AAPL, Your approach is spot-on. When dealing with these types of questions, Number Property rules and pattern-recognition can often be quite helpful (and can help you to work through the math in an efficient fashion). First, we''re multiplying two 2-digit numbers together and ending up with ...”
June 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to An employee identification code consists of a vowel followed in the Problem Solving forum
“Hi swerve, We''re told that an employee identification code consists of a vowel followed by 3-digit number greater than 200 and EXACTLY 2 of the 3 digits in the code should be IDENTICAL. We''re asked for the number of different codes that are possible. To start, there are 5 vowels in the ...”
June 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain team consists of 4 professors and 6 teaching in the Problem Solving forum
“Hi swerve, We''re told that a certain team consists of 4 professors and 6 teaching assistants. We''re asked for the number of different teams of 3 can be formed in which AT LEAST one member of the group is a professor? (Two groups are considered different if at least one group member is ...”
June 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to If a, b, and c are real numbers, is a/b > b/c? in the Data Sufficiency forum
“Hi Gmat_mission, We''re told that A, B and C are real numbers. We''re asked if A/B is greater than B/C. This is a YES/NO question and can be solved by TESTing VALUES. 1) A > C IF..... A=2, B=1, C=1 then 2/1 is greater than 1/1 and the answer to the question is YES A=2, B=-1, C=1 then ...”
June 3, 2018
Rich.C@EMPOWERgmat.com posted a reply to work in the Problem Solving forum
“Hi vaibhav101, We''re told that Person A does 80% of a work in 20 days; he then calls Person B and they together finish the remaining work in 3 days. We''re asked for the number of days that it would take Person B alone to do all of the work. Since Person A does 80% of the work in 20 days, ...”
June 3, 2018
Rich.C@EMPOWERgmat.com posted a reply to work in the Problem Solving forum
“Hi vaibhav101, To start, you are not expected to know that a cubic cm = .001 liters. If this were an Official GMAT Question, then you would be given that ''conversion'' in the prompt. We''re told that a water tank of 10,000 cm^3 capacity is to be filled from 2 taps: X and Y; the inflow of ...”
June 3, 2018
Rich.C@EMPOWERgmat.com posted a reply to Reformatting a number in the GMAT Math forum
“Hi Nonnos123, When multiplying numbers together, it doesn''t matter which number comes first. For example: (2)(3)(4) = (3)(4)(2) In that same way, you can ''rewrite'' either of those calculations and still end up with the same result. For example: (2)(3)(4) = (3)(4)(2) (6)(4) = (3)(8) ...”
June 3, 2018
Rich.C@EMPOWERgmat.com posted a reply to In the sequence a_1, a_2, . . . , a_n each term in the Problem Solving forum
“Hi Gmat_mission, We''re told that In the sequence a_1, a_2, . . . , a_n each term after the first term is equal to the preceding term plus a constant C and that $$a_1+a_{11}+a_{21}=99.$$ We''re asked for the value of $$a_3+a_{19}=?$$. Since we''re dealing with a sequence that increases by a ...”
June 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to If 25 percent of p is equal to 10 percent of q in the Problem Solving forum
“Hi swerve, We''re told that 25 percent of P is equal to 10 percent of Q, and (P)(Q) is not equal to 0. We''re asked P is what percent of Q. This question can be solved in a couple of different ways, including by TESTing VALUES. IF... P = 4, then (25% of P) = 1 1 = (10% of Q), so Q = 10 ...”
June 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to A car travels from point A to B. The average speed of the in the Problem Solving forum
“Hi swerve, We''re told that a car travels from point A to point B. The average speed of the car is 60 miles/hr and it travels the first half of the distance at a speed of 90 mi/hr. We''re asked for the speed of the car in the second half of the trip. This question can be solved by TESTing ...”
June 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to After multiplying a positive integer A, which has 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 ...”
June 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to John spent 72% of his budget on fruits (including apples) in the Problem Solving forum
“Hi M7MBA, We''re told that John spent 72% of his budget on fruits (including apples), and 54% of his budget on apples. We''re asked for the percent of the money spent on fruits were NOT spent on apples. This question can be solved in a couple of different ways. TESTing VALUES works really well ...”
June 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to ratios in the Problem Solving forum
“Hi vaibhav101, We''re told that 3 containers have their volumes in the ratio 3:4:5 and the 3 mixtures contain milk and water in the ratio of (4:1), (3:1) and (5:2) respectively. We''re asked for the ratio of all milk to all water in the 3 containers. This question can be solved in a couple of ...”
June 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to ratios in the Problem Solving forum
“Hi vaibhav101, This question can be solved by TESTing VALUES. We''re told that the night crew consists of 4/5 as many workers as the day crew: Night crew = 4 workers Day crew = 5 workers We''re also told that each member of the night crew loaded 3/4 as many crates as each member of the day ...”
June 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to For what value of x are the mode, the median and the average in the Problem Solving forum
“Hi AAPL, You''ve correctly deduced that the Mode would have to be 60. You might be able to save on some ''calculation time'' if you use the patterns in the numbers to your advantage (meaning that you don''t technically have to calculate the entire average by hand to find the value of X). The ...”
May 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to The price of onions increases by 25%, by what percent should in the Problem Solving forum
“Hi All, We''re told that the price of onions increases by 25%. We''re asked by what percent the consumption should decrease so that the overall money spent onions is the same. This question can be solved in a couple of different ways, including by TESTing VALUES. We will need the Percent Change ...”
May 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to In the biology lab of "Jefferson" high School ther in the Problem Solving forum
“Hi swerve, We''re told that in the biology lab there are 5.4*10^6 germs, equally divided among 10,800 Petri dishes. We''re asked for the number germs living in a single dish. The math behind this question can be done in a couple of different ways. Considering that the answer choices are ''spread ...”
May 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to Must Have Resources for GMAT preparation? in the GMAT Strategy forum
“Hi Smita, 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 ...”
May 30, 2018
Rich.C@EMPOWERgmat.com posted a reply to Are x and y both positive? in the Data Sufficiency forum
“Hi VJesus12, DS questions can often be solved with a variety of tactics. Beyond the "math" approaches that can be used, you can also TEST Values (as Brent''s solution showcased) and often use Number Properties to your advantage. Here, we''re asked if X and Y are BOTH positive? This ...”
May 29, 2018
Rich.C@EMPOWERgmat.com posted a reply to A soda machine sells both bottles and cans, and no other in the Problem Solving forum
“Hi VJesus12, We''re told that a soda machine sells both bottles and cans, and no other items. Bottles cost $1.50 each, while cans cost$0.75 each and in one day, the soda machine sold 250 total beverages and yielded $315. We''re asked how many MORE bottles than cans were sold. This question can ...” May 28, 2018 Rich.C@EMPOWERgmat.com posted a reply to Java House charges$3.25 for a cup of coffee that costs a in the Problem Solving forum
“Hi All, We''re told that Java House charges $3.25 for a cup of coffee that costs a total of$2.85 to make, Cup''O''Joe charges $2.80 for a cup that costs$2.65 to make and Java House sells 55,000 cups of coffee. We''re asked for the number of cups that Cup''O''Joe must sell to make at least as ...”
May 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to Three men and 2 women will present 5 consecutive speeches in the Problem Solving forum
“Hi All, We''re told that 3 men and 2 women will present 5 consecutive speeches (1 by each person) at a conference and that the order of the speakers is determined randomly. We''re asked for the probability that at least 2 of the men''s speeches will be consecutive. This question can be solved in ...”
May 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to A pipe fills a pool in 3.5 hours. If the flow of water is in the Problem Solving forum
“Hi AAPL, We''re told that a pipe fills a pool in 3.5 hours and that the flow of water is changed so that the pipe''s rate is HALVED. We''re asked how long it would then take for the pipe to fill 2/3 of the pool. While this question might look a little ''scary'', the math involved is relatively ...”
May 28, 2018
Rich.C@EMPOWERgmat.com posted a reply to NUMBERS in the Data Sufficiency forum
“Hi vaibhav101, We''re told that M and N are integers. We''re asked if M is ODD. This is a YES/NO question and can be solved by TESTing VALUES and Number Properties. 1) (M+N) is ODD. IF.... M=1, N=0 then the answer to the question is YES. M=0, N=1 then the answer to the question is NO. ...”
May 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to NUMBERS in the Data Sufficiency forum
“Hi vaibhav101, We''re told that R - S = 3P. We''re asked if P is an integer. This is a YES/NO question and can be solved by TESTing VALUES (and knowledge of a rarer Number Property rule also helps). 1) R is divisible by 735 IF.... R=735 and S = 0, then 735 = 3P and P = 245. The answer ...”
May 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to NUMBERS in the Data Sufficiency forum
“Hi vaibhav101, We''re told that M and N are nonzero integers. We''re asked if M/N is an integer. This is a YES/NO question and we can answer it with a mix of TESTing VALUES and logic. 1) 2M is divisible by N IF.... M=1 and N=1, then the answer to the question is YES. M=1 and N=2, then ...”
May 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to The pilot of a small aircraft with a 40-gallon fuel tank in the Problem Solving forum
“Hi All, We''re told that the pilot of a small aircraft with a 40-gallon fuel tank wants to fly to Cleveland, which is 480 miles away - but the plane can only fly 8 miles per gallon, which will not get him there. We''re asked by how many miles per GALLON must the aircraft’s fuel efficiency be ...”
May 26, 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 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 can be solved in a ...”
May 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to 530 on first GMATPrep CAT exam... need advice! in the GMAT Strategy forum
“Hi jwm5, Based on what you described, there are a number of ''variables'' in terms of your plan and goals. First, if you finish a section 30 minutes early, then you most certainly DID ''rush'' through the section (whether that was your intention or not). Finishing any section with signifiant ...”
May 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to A set has exactly five consecutive positive integers in the Problem Solving forum
“Hi swerve, We''re told that a set has exactly five CONSECUTIVE positive integers starting with 1. We''re asked for the percentage decrease in the average when the greatest number is removed from the set. This question requires the use of the Percent Change Formula: Percent Change = (New - ...”
May 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to If Lucy walks to work at a rate of 4 miles per hour in the Problem Solving forum
“Hi swerve, Since this question gives us just the two rates to work with, we can solve it by TESTing VALUES. The two speeds are 4 miles/hour and 6 miles/hour, so we should choose a common multiple of those two numbers for the one-way distance. Let''s TEST 12 miles. Walking to work: D = ...”
May 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to Pat took "N" whole days to complete the project. I in the Problem Solving forum
“Hi swerve, We''re told that Pat took "N" whole days to complete the project and that one of the answers represents the value of N (with the dash representing a digit which has been omitted from the 4-digit value of N). We''re asked which of the following COULD be the value of N. While ...”
May 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to Last year 26 members of a certain club traveled to England, in the Problem Solving forum
“Hi All, Last year 26 members of a certain club traveled to England, 26 members traveled to France, and 32 members traveled to Italy. Last year no members of the club traveled to both England and France, 6 members traveled to both England and Italy, and 11 members traveled to both France and ...”
May 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to A shepherd has 1 million sheep at the beginning of Year 2000 in the Problem Solving forum
“Hi All, We''re told that A shepherd has 1 million sheep at the beginning of Year 2000. The numbers grow by X% (X > 0) during the year, then the sheep population decreases by Y% during 2001 and at the beginning of 2002 the shepherd finds that he is left with 1 million sheep. We''re asked which ...”
May 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to For the infinite sequence a_1, a_2, a_3, ... a_n, a_n+1 in the Problem Solving forum
“Hi All, With sequence questions, you will almost always be given ''instructions'' about how the sequence works - and those instructions will be technical in nature. Here, the wording ultimately means that each ''term'' after the first term is equal to 3 TIMES the prior term. For example, a ...”
May 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to Shall I retake the GMAT? Is Magoosh worth all the hype? in the GMAT Strategy forum
“Hi icim, To start, a 640/Q47 is a solid score (it''s around the 75th percentile overall), so it could be enough to get you into Business School. For Admissions-specific questions, you should discuss your profile and application plans with an Admissions Expert. There''s a forum full of those ...”
May 24, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a sample of associates at a law firm, 30 percent are in the Problem Solving forum
“Hi All, We''re told that in a sample of associates at a law firm, 30 percent are second-year associates, and 60 percent are not first-year associates. We''re asked for the percentage of the associates at the law firm that have been there for MORE than two years. Although this prompt has a bit of ...”
May 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to "A" and "B" run around a circular track in the Problem Solving forum
“Hi All, This prompt gives us a number of facts to work with: 1) "A" and "B" run around a circular track starting from the same point simultaneously (and in the same direction) 2) "A" meets "B" for the first time when "A" is exactly in the ...”
May 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to Last year's receipts from the sale of candy on Valentine's in the Problem Solving forum
“Hi All, We''re told that last year''s receipts from the sale of candy on Valentine''s Day totaled 385 million dollars and those receipts represented 7% of total candy sales for the year. We''re asked for the total dollar amount of candy sold, in millions of dollars, for the year. This question ...”
May 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to If x = 3y = 4z, which of the following must equal 6x ? in the Problem Solving forum
“Hi VJesus12, We''re told that X = 3Y = 4Z. We''re asked which of the following must equal 6X. This question can be solved in a couple of different ways, including by TESTing VALUES. IF.... X=12, Y=4, Z=3.....then we''re looking for values that equal 6(12) = 72. I. 18Y 18(4) = 72, so ...”
May 22, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain disability plan pays monthly benefits of 60 in the Problem Solving forum
“Hi All, We''re told that a certain disability plan pays monthly benefits of 60 percent of the FIRST $2000 of monthly salary plus 40 percent of any portion in EXCESS of$2000, with the total monthly benefit not to exceed $2,500. We''re asked for the SMALLEST monthly salary that will yield the ...” May 22, 2018 Rich.C@EMPOWERgmat.com posted a reply to OG Is the area of the triangular region above less than 20? in the Data Sufficiency forum “Hi All, We''re asked if the area of the triangular region above is LESS than 20. This is a YES/NO question and can be solved by TESTing VALUES and using some specific Geometry rules. When dealing with Geometry questions, it''s important to remember that we CANNOT trust the picture. We know that ...” May 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to What the value of w^-2? in the Data Sufficiency forum “Hi All, We''re asked for the value of w^(-2). This is a great example of a ''concept question'' - meaning that you don''t actually have to do any math to get the answer as long as you understand the concept(s) involved. The concepts tested here are all about exponents of numbers. The two ...” May 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to please explain in the Data Sufficiency forum “Hi All, We''re asked for the cube root of W. This is a great example of a ''concept question'' - meaning that you don''t actually have to do any math to get the answer as long as you understand the concept(s) involved. The concepts tested here are all about ''roots'' of numbers. The root ...” May 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to The equation of a straight line containing the points in the Problem Solving forum “Hi All, We''re asked for the equation of a straight line that contains the points (10, 100) and (15, 60). This question can be solved by simply ''plugging'' in the two co-ordinates and finding the equation that includes both among its solutions. The first coordinate is arguably the easiest ...” May 20, 2018 Rich.C@EMPOWERgmat.com posted a reply to Jemma takes 2 hours to swim the 4 miles from buoy A to in the Problem Solving forum “Hi swerve, We''re told that Jemma takes 2 hours to swim the 4 miles from buoy A to buoy B and then continues to buoy C at HALF her previous speed. If buoy C is 6 miles away from buoy B, we''re asked how many MORE hours will pass before Jemma reaches Buoy C. This question is just a ''Rate'' ...” May 18, 2018 Rich.C@EMPOWERgmat.com posted a reply to Equal volumes of water were poured into 3 empty flasks in the Problem Solving forum “Hi swerve, We''re told that EQUAL volumes of water were poured into 3 empty flasks, making one flask 1/6 full, one flask 1/8 full, and one flask 1/12 full. Then, half of the water from each of the two smallest flasks is then poured into the largest flask. We''re asked what fraction of the ...” May 18, 2018 Rich.C@EMPOWERgmat.com posted a reply to A shop sells two variants of chocolates - one that costs in the Problem Solving forum “Hi All, We''re told that a shop sells two variants of chocolates - one that costs$3 and the other that costs $5 and the shop sold$108 of chocolates on a given day. We''re asked for the number of different combinations of (number of $3 sold, number of$5 sold) that could have been sold. This ...”
May 18, 2018
Rich.C@EMPOWERgmat.com posted a reply to Is x < 0? (1) -2x > 0 (2) x^3 < 0 in the Data Sufficiency forum
“Hi alanforde800Maximus, We''re asked if X is less than 0. This is a YES/NO question and can be solved with Number Properties. 1) -2X > 0 The ONLY way for (-2)(X) to be positive is if X is a NEGATIVE number. Thus, the answer to the question is ALWAYS YES. Fact 1 is SUFFICIENT. 2) ...”
May 18, 2018
Rich.C@EMPOWERgmat.com posted a reply to Is xy< 0 ? in the Data Sufficiency forum
“Hi VJesus12, We''re asked if (X)(Y) is less than 0. This is a YES/NO question and can be solved by TESTing VALUES. 1) (X)(Y^2) < Y^2 IF.... X=0 and Y=1 then (X)(Y) = (0)(1) = 0 and the answer to the question is NO. X= -1 and Y=1 then (X)(Y) = (-1)(1) = -1 and the answer to the ...”
May 18, 2018
Rich.C@EMPOWERgmat.com posted a reply to Each vote in a certain election went to one of the two candi in the Data Sufficiency forum
“Hi alanforde800Maximus, We''re told that each vote in a certain election went to one of the two candidates, X or Y, Candidate X received 624 votes cast by men and Candidate Y received 483 votes cast by women. We''re asked for the total number of votes received by Candidate X. Since we already ...”
May 18, 2018
Rich.C@EMPOWERgmat.com posted a reply to For each order, a certain company charges a delivery fee d t in the Data Sufficiency forum
“Hi alanforde800Maximus, We''re told that for each order, a certain company charges a delivery fee D that depends on the total price X of the merchandise in the order, where D and X are in dollars and D = 3, if 0 < X <= 100 D = 3 + (X-100)/100, if 100 < X <= 500 D = 7, if X > ...”
May 18, 2018
Rich.C@EMPOWERgmat.com posted a reply to Work PS problem I am having trouble solving in the Problem Solving forum
“Hi All, We''re told that a computer programmer needs to print 148 documents, each document has an average length of 10 pages and the printer takes 15 seconds to print each page. We''re asked for the approximate number of hours needed to print all the documents if they are printed without ...”
May 17, 2018
Rich.C@EMPOWERgmat.com posted a reply to When the figure above is cut along the solid lines, folded a in the Problem Solving forum
“Hi alanforde800Maximus, If you''re thinking about drawing this shape, then you could potentially do that - but if you focused too much on the drawing (and not on the description in the prompt) then you might find it a little tough to draw an appropriate sketch. For the sake of argument, could ...”
May 17, 2018
Rich.C@EMPOWERgmat.com posted a reply to The Number of students learning Three subjects are as in the Problem Solving forum
“Hi M7MBA, We''re told that the number of students learning three subjects is as follows: Maths = 40, English = 50, Science = 35, the number of students learning EXACTLY two subjects is MAXIMIZED and NO student learns all the three subjects. We''re asked for the minimum number of students ...”
May 17, 2018
Rich.C@EMPOWERgmat.com posted a reply to When the figure above is cut along the solid lines, folded a in the Problem Solving forum
“Hi alanforde800Maximus, We''re told to cut along the solid lines, fold along the dashed lines, and tape along the solid lines to form a model of a geometric solid. This geometric solid consists of 2 pyramids, each with a square base that they share. We''re asked for the sum of the number of ...”
May 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to How many four-digit positive integers can be formed by using in the Problem Solving forum
“Hi All, We''re asked for the number of different four-digit positive integers that can be formed by using the digits from 1 to 9 so that TWO digits are EQUAL to each other and the remaining two are ALSO EQUAL to each other but DIFFERENT from the other two. The ''quirky'' part about this ...”
May 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to Working alone, Manuel finishes cleaning half the house in in the Problem Solving forum
“Hi All, We''re told that working alone, Manuel finishes cleaning HALF the house in a THIRD of the time it takes Nick to clean the entire house alone and that Manuel alone cleans the entire house in 6 hours. We''re asked for the number of hours it would take Nick and Manuel to clean the entire ...”
May 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to 720 GMAT, worth retaking? in the GMAT Strategy forum
“Hi jc2586, To start, a 720/Q49 is an outstanding score (it''s above the 90th percentile overall), so you can comfortably apply to ANY Business Schools that interest you. By extension, a retest is almost certainly NOT necessary. Since you''re planning to apply to some highly-competitive Schools, ...”
May 15, 2018
“Hi PiyaNca, To start, you would likely receive more of a response if you posted your question in the appropriate sub-forum. For example, the Problem Solving Forum can be found here: https://www.beatthegmat.com/problem-solving-f6.html In this question, we''re told that to earn a joint ...”
May 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to If the value of x quarters is equal to the value of in the Problem Solving forum
“Hi VJesus12, We''re told that the value of X quarters is equal to the value of (X + 32) nickels. We''re asked for the value of X. This question can be approached in a number of different ways, including by ''brute force'' arithmetic. The value of 1 quarter is the same as the total value of 5 ...”
May 14, 2018
Rich.C@EMPOWERgmat.com posted a reply to Stella paid $1,500 for a computer after receiving a 20 in the Problem Solving forum “Hi VJesus12, We''re told that Stella paid$1,500 for a computer AFTER receiving a 20 percent discount. We''re asked for the price of the computer BEFORE the discount. This question can be solved by TESTing THE ANSWERS. Since $1500 is the price AFTER the discount, the original price must be ...” May 14, 2018 Rich.C@EMPOWERgmat.com posted a reply to A car traveled 60 mph from Belnap to Lincoln and 50 mph from in the Problem Solving forum “Hi AAPL, We''re told that a car traveled 60 mph from Belnap to Lincoln and 50 mph from Lincoln to Belnap and that the whole trip was 660 miles. We''re asked how long (in hours) the round trip took. The answers to this question are ''spread out'' enough that you can actually do some ''rounding'' ...” May 14, 2018 Rich.C@EMPOWERgmat.com posted a reply to If k is negative, which of the following must also be negati in the Problem Solving forum “Hi alanforde800Maximus, We''re told that K is NEGATIVE. We''re asked which of the following MUST also be NEGATIVE. This question can be solved by TESTing VALUES. IF... K = -1 Answer A = (1)^2 = 1 Answer B = (-1)(-1) = 1 Answer C = 1 - (-1) = 2 Answer D = (-1) + 1 = 0 Answer E = (-1) - ...” May 14, 2018 Rich.C@EMPOWERgmat.com posted a reply to The original price of a camera was displayed as a whole in the Problem Solving forum “Hi Gmat_mission, We''re told that the original price of a camera was displayed as a whole dollar amount and after adding sales tax of 10 percent, the final price was ALSO a whole dollar amount. We''re asked which of the following COULD be the final price of the camera. This question is based on ...” May 13, 2018 Rich.C@EMPOWERgmat.com posted a reply to The number of coins that Lana and Brad had were in the in the Problem Solving forum “Hi Gmat_mission, We''re told that the number of coins that Lana and Brad had were in the ratio of 5 : 2, respectively and AFTER Lana gave Brad 8 of her coins, the ratio of the number of coins Lana had to the number Brad had was 3 : 2. We''re asked AFTER Lana gave Brad the coins, how many more ...” May 13, 2018 Rich.C@EMPOWERgmat.com posted a reply to At 9:00 AM, a certain ice cream cart has twice as many in the Problem Solving forum “Hi Gmat_mission, We''re told that at 9:00 AM, a certain ice cream cart has TWICE as many chipwiches as it does mud pies. During the day, only chipwiches are sold, and at 5:00 PM, the cart has the exact SAME number of mud pies as it did at 9:00 AM, but now the number of mud pies is TWICE the ...” May 13, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the greatest prime factor of 1+2+3+ . . . + 40? in the Problem Solving forum “Hi Vincen, We''re asked for the greatest prime factor of 1 + 2 + 3 + . . . + 40. This question has a number of built-in ''shortcuts'' that you can use to avoid doing lots of calculations. To start, the answers are all prime numbers - so we know that one of those numbers IS the greatest prime ...” May 13, 2018 Rich.C@EMPOWERgmat.com posted a reply to 760+: What GMAT Assassins Do to Score at the Highest Levels in the GMAT Strategy forum “Answer to the Prior Question: Long Math Approaches vs. Faster Tactical Approaches In the prior post, I listed the following Quant PS question: Andrew has a certain number of coins in his pocket. He has three times as many dimes as quarters and six times as many nickels as dimes. A nick is ...” May 12, 2018 Rich.C@EMPOWERgmat.com posted a reply to If x and y are positive integers, is x even? in the Data Sufficiency forum “Hi M7MBA, We''re told that X and Y are POSITIVE INTEGERS. Were asked if X is EVEN. This is a YES/NO question can be solved with Number Properties. 1) X - 3Y = 27 IF.... Y = ODD, then X = EVEN and the answer to the question is YES. Y = EVEN, then X = ODD and the answer to the question ...” May 12, 2018 Rich.C@EMPOWERgmat.com posted a reply to If x and y are positive integers, and 4x^2=3y, in the Problem Solving forum “Hi M7MBA, We''re told that X and Y are POSITIVE INTEGERS and 4X^2 = 3Y. We''re asked which of the following MUST be a multiple of 9. While this question is ''quirky'', it can be solved with a little logic and Prime Factorization. To start, we should prime factor 4X^2 = 3Y... (2)(2)(X)(X) = ...” May 12, 2018 Rich.C@EMPOWERgmat.com posted a reply to Three of the four vertices of a rectangle in the xy-coordina in the Problem Solving forum “Hi alanforde800Maximux, The easiest approach to this question is arguably to graph the three points that we''re given and ''connect the dots.'' You will end up seeing the "top" and "right side" of the rectangle. With those sides, you won''t need to do any math - you''ll just ...” May 12, 2018 Rich.C@EMPOWERgmat.com posted a reply to Is xy = 1? in the Data Sufficiency forum “Hi VJesus12, We''re asked if (X)(Y) = 1. This is a YES/NO question and we can answer it by TESTing VALUES. 1) X > 1 Fact 1 tells us that X is greater than 1, but tells us nothing about the value of Y. IF..... X=2, Y=2 then the answer to the question is NO X=2, Y=1/2 then the answer ...” May 11, 2018 Rich.C@EMPOWERgmat.com posted a reply to If the average (arithmetic mean) of n consecutive odd in the Data Sufficiency forum “Hi VJesus12, We''re told that the average of N CONSECUTIVE ODD integers is 10. We''re asked for the least of the integers. This DS question hides an interesting Number Property that you''ll find useful. If you''re dealing with consecutive odd integers with an average of 10, then the ...” May 11, 2018 Rich.C@EMPOWERgmat.com posted a reply to If the width, depth and length of a rectangle box were each in the Problem Solving forum “Hi All, We''re told that the width, depth, AND length of a rectangular box are each decreased by 50%. We''re asked by what percent the volume of the box decreases. This question can be solved rather easily by TESTing VALUES. There''s also a great ''concept shortcut'' that you can use to answer ...” May 11, 2018 Rich.C@EMPOWERgmat.com posted a reply to Mark bought a set of 6 flower pots of different sizes at a in the Problem Solving forum “Hi All, We''re told that a set of 6 flower pots of DIFFERENT sizes cost a total cost of$8.25 and that each pot cost 0.25 more than the next one below it in size. We''re asked for the cost, in dollars, of the largest pot. Although it''s not specifically stated, we''re meant to assume that we''re ...”
May 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to A parking lot charges a flat rate of X dollars for any in the Problem Solving forum
“Hi All, We''re told that a parking lot charges a flat rate of X dollars for any amount of time UP to 2 hours, and X/6 hours each hour OR fraction of an hour AFTER the first two hours. We''re asked for the cost to park for 5 hours and 15 minutes. This question can be solved by TESTing VALUES. ...”
May 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to A T-shirt supplier charges $12 per T-shirt for the first 50 in the Problem Solving forum “Hi alanforde800Maximux, We''re told that a T-shirt supplier charges$12 per T-shirt for the FIRST 50 T-shirts in an order and then $10 per T-shirt for each additional T-shirt in the order and the total charge for an order of T-shirts was$1500. We''re asked for the total number of T-shirts in ...”
May 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to Three of the four vertices of a rectangle in the xy-coordina in the Problem Solving forum
“Hi alanforde800Maximux, We''re given 3 of the four vertices of a rectangle in the xy-coordinate plane: (-3, 10), ( 2, 10), and (2, 1). We''re asked for the 4th co-ordinate. Based on the three pairs of numbers, we see common X-coodinates (2) and Y-coordinates (10), meaning that the rectangle ...”
May 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to A positive integer is divisible by 3 if and only if the sum in the Problem Solving forum
“Hi alanforde800Maximux, We''re told that the six-digit integer is divisible by 3, and is of the form 1K2,K24, where K represents a digit that occurs twice. We''re asked for the number of different possible values. Using the ''rule of 3'', since 1+2+2+4 = 9 (which is a multiple of 3), the ...”
May 11, 2018
Rich.C@EMPOWERgmat.com posted a reply to If x and y are integers and |x-y|=12, what is the minimum in the Problem Solving forum
“Hi AAPL, We''re told that X and Y are integers and |X - Y| = 12. We''re asked for the MINIMUM possible value of (X)(Y). You will likely find that a bit of ''brute force'' Arithmetic is the easiest way to get to the correct answer. To start, ALL of the answers are NEGATIVE, which means that ...”
May 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to What is the x-intercept of the line with the equation in the Problem Solving forum
“Hi All, We''re given the equation 2Y = 8X - 14. We''re asked for the X-intercept of that equation. For most Test Takers, solving this Algebraically would be the most straight-forward way to get to the correct answer. The answer choices are written in such a way that you can estimate the solution ...”
May 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a certain school, the ratio of boys to girls is in the Problem Solving forum
“Hi M7MBA, We''re told that in a certain school, the ratio of boys to girls is 5 to 13 and that there are 72 more girls than boys. We''re asked for the total number of boys in the school. The ratio data in this prompt can be used in a number of different ways to get the correct answer. You ...”
May 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to A point on the adge of a fan blade that is rotating in a in the Problem Solving forum
“Hi All, We''re told that a fan blade is 10cm from the center of the fan (which means we have a radius of 10). We''re then told that the fan blade spins for 15 seconds (which means that we''re dealing with the circumference of a circle). We''re asked how far the point "travels" if the ...”
May 9, 2018
Rich.C@EMPOWERgmat.com posted a reply to The number of sailors on a ship is 88% more than the number in the Problem Solving forum
“Hi All, We''re told that the number of sailors on a ship is 88% more than the number of officers. We''re asked for the ratio of sailors to officers. This question can be solved by TESTing VALUES. IF.... Number of officers = 100 Number of sailors = 188 Thus, the ratio of sailors to ...”
May 9, 2018
Rich.C@EMPOWERgmat.com posted a reply to A line segment containing the point (0,0) and (12,8) will in the Problem Solving forum
“Hi M7MBA, We''re told that a line segment contains the point (0,0) and (12,8). We''re asked which of the 5 points will also be on that line. Since we''re dealing with ''line rules'', we can use the relationship between the 2 points that we''re given - and the design of the answer choices - to ...”
May 9, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a certain downtown office, 40 percent of the workers are in the Problem Solving forum
“Hi Anaira Mitch, We''re told that in a downtown office, 40 percent of the workers are men and 60 percent are women and of the male workers, 30 percent drive to work and the rest take the train, while ALL of the female workers drive to work. We''re asked for the percent of workers who take the ...”
May 9, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a class of 200 students, 120 study Spanish and 100 study in the Problem Solving forum
“Hi AAPL, We''re told that in a class of 200 students, 120 study Spanish and 100 study French and each student must study AT LEAST one of these two languages. We''re asked for the percent of the students that study French but NOT Spanish. This question is a variation on a standard Overlapping ...”
May 7, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a room filled with 7 people, 4 people phave exactly 1 in the Problem Solving forum
“Hi All, Brent''s approach focuses on the use of the Combination Formula, which is probably the most "elegant" way to solve this problem. There are other ways to solve this problem though, if you''re not yet comfortable with doing that type of math. Here''s an option that focuses on ...”
May 5, 2018
Rich.C@EMPOWERgmat.com posted a reply to What is the largest integer if the sum of three consecutive in the Problem Solving forum
“Hi All, We''re told that we have a group of 3 CONSECUTIVE, EVEN integers with a sum of 318. We''re asked for the LARGEST integer. This question can be solved in number of different ways, including by TESTing THE ANSWERS. Since 318 is well above 300 - and the integers are consecutive even ...”
May 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to Some fourth graders are choosing foursquare teams at in the Problem Solving forum
“Hi VJesus12, We''re asked for the total possible number of combinations of four-person foursquare teams that could be chosen from a group of six kids. I agree with Brent''s assessment (it''s not perfectly clear whether we''re supposed to be treating this question as a Permutation or a ...”
May 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to Given that N=a3b4c5 where a, b and c are distinct prime in the Problem Solving forum
“Hi ideree, This question is built around a few Number Properties involving exponents. For a number to be a perfect square, all of the "exponent terms" must be EVEN. for example…. 25 is a perfect square because 25 = 5^2 16 is a perfect square because 16 = 4^2 = 2^4 For a ...”
May 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to 12 years out of college, GMAT study plan? in the GMAT Strategy forum
“Hi KDR83, To start, a 560 is a solid performance for an initial CAT (the average score on the Official GMAT hovers around 540-550 most years). You''ve also given yourself plenty of time to study - which is good. That having been said, to hit 680+, you will have to make significant improvements to ...”
May 4, 2018
Rich.C@EMPOWERgmat.com posted a reply to In an electric circuit, two resistors with resistances x and in the Problem Solving forum
“Hi All, This question can be solved with TESTing Values. We''re told that the reciprocal of R is equal to the SUM of the reciprocals of X and Y. This means…. 1/R = 1/X + 1/Y We''re asked for the value of R in terms of X and Y If X = 2 and Y = 3, then we have… 1/R = 1/2 + 1/3 ...”
May 2, 2018
Rich.C@EMPOWERgmat.com posted a reply to A lighting store is stocked with 410 fixtures. Some of the in the Problem Solving forum
“Hi swerve, We''re told that a lighting store is stocked with 410 fixtures - some of the fixtures are floor lamps and the rest are table lamps and 5% of the floor lamps and 30% of the table lamps are imported. We''re asked for the SMALLEST possible number of imported lamps stocked at the store. ...”
May 2, 2018
Rich.C@EMPOWERgmat.com posted a reply to If the volume of a cube is x^3 cubic units, what is the in the Problem Solving forum
“Hi swerve, We''re told that the volume of a cube is X^3 cubic units. We''re asked for the number of SQUARE units in the SURFACE AREA of the cube. This question can be solved in a couple of different ways, including by TESTing VALUES. IF... X = 2, then we have a 2x2x2 cube. Each surface of ...”
May 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to Need to prepare for GMAT but I don't have a lot of money... in the GMAT Strategy forum
“Hi Farah_1995, Potentially using your Official GMAT Score to apply to two different Programs over the next 5 years is a smart choice. To get started, here is the link to mba.com where you can take your initial practice CATs using the new online interface: ...”
May 1, 2018
Rich.C@EMPOWERgmat.com posted a reply to During one day, a door-to-door salesman sold three fourths in the Problem Solving forum
“Hi AAPL, We''re told that a brick salesman sold 3/4 of his bricks for $0.25 each and that he had 150 bricks left at the end of the day. We''re asked for the amount of money that he collected for brick sales that day. Most Test Takers will calculate the number of bricks sold and then multiply ...” April 30, 2018 Rich.C@EMPOWERgmat.com posted a reply to If p and q are positive integers such in the Data Sufficiency forum “Hi M7MBA, It looks like the prompt that you posted is incomplete. Here is the full version: If p and q are positive integers such that pq has exactly 4 unique positive factors and p < q, what is the value of the integer p? (1) The sum of p and q is an odd integer. (2) The difference ...” April 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to Rates for having a manuscript typed at a certain typing in the Problem Solving forum “Hi All, We''re told that rates for having a manuscript typed at a certain typing service are$5 per page for the first a page is typed and $3 per page each time a page is REVISED - and a certain manuscrpt has 100 pages, of which 40 were revised only ONCE, 10 were revised TWICE, and the rest ...” April 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to At Pete's Pet Shop, 35 cups of bird seed are used every in the Problem Solving forum “Hi All, We''re told that 35 cups of birdseed are used every 7 days to feed 15 parakeets. We''re asked for the number of cups of birdseed needed to feed 9 parakeets for 12 days. In these types of rate questions, it often helps to think in terms of the ''totals'' involved and then work ...” April 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to Car A and car B are driving towards each other along in the Problem Solving forum “Hi swerve, We''re told that Car A and car B are driving towards each other along straight line, Car A travels at a constant speed of 60 miles/hr, car B travels at a constant speed of 40 miles/hr and at NOON they are separated by a distance of 300 miles. We''re asked for the time at which they ...” April 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to In a group of 20 people, 5 of them belong to the golf in the Problem Solving forum “Hi swerve, We''re told that in a group of 20 people, 5 of them belong to the golf club, 7 to the swim club, and 9 to the tennis club, 2 of the people belong to ALL three clubs and 3 belong to EXACTLY two of the three clubs. We''re asked for the number of people who belong to none of the three ...” April 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to What's next?? in the I just Beat The GMAT! forum “Hi targetmba6, The process of applying to (and ultimately attending) Business School will require a big investment of time, money and energy on your part, so you really should make sure that the Programs that you apply to match your career goals/needs. There are a variety of factors that go into ...” April 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to 2018 edition OG suggested question list in the I just Beat The GMAT! forum “Hi Sagar, If you''re looking for MGMAT''s recommended practice sets from the OG2018, then you might want to reach out directly to that Company''s representatives and ask. MGMAT has a forum here: https://www.beatthegmat.com/ask-a-manhattan-prep-representative-f38.html Beyond that issue, ...” April 29, 2018 Rich.C@EMPOWERgmat.com posted a reply to If the average of 2x and 4x is 12, then x in the Problem Solving forum “Hi VJesus12, We''re told that the average of 2X and 4X is 12. We''re asked for the value of X. This question can be solved Algebraically or by TESTing THE ANSWERS. Since we have two different ''terms'' - and an average of 12 - we know that one term is smaller than 12 and the other is bigger ...” April 28, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the perimeter of a regular polygon with in the Problem Solving forum “Hi VJesus12, We''re told that a regular polygon has sides of length 12 cm and internal angles measuring 144° each. We''re asked for the PERIMETER of that polygon. This question can be solved in a variety of different ways, but there''s a great ''concept shortcut'' that you can use - along with ...” April 28, 2018 Rich.C@EMPOWERgmat.com posted a reply to A sporting goods store ordered an equal number of white and in the Problem Solving forum “Hi All, We''re told that a sporting goods store ordered an EQUAL number of white and yellow tennis balls, but the tennis ball company delivered 30 extra white balls, making the ratio of white balls to yellow balls 6:5. We''re asked for the TOTAL number of tennis balls that the store originally ...” April 28, 2018 Rich.C@EMPOWERgmat.com posted a reply to If q is the set of positive values for p and |3p – 4| ≤ in the Problem Solving forum “Hi All, We''re told that Q is the set of POSITIVE values for P and |3P - 4| ≤ 1. We''re asked which of the following is the RANGE of Q. This question can be solved in a couple of different ways, including Algebraically: To find the maximum and minimum positive values for P, we need to solve ...” April 27, 2018 Rich.C@EMPOWERgmat.com posted a reply to A high School has 400 students 1/2 attend the arithmetic in the Problem Solving forum “Hi All, We''re told that a High School has 400 students: 1/2 attend the arithmetic club, 5/8 attend the Biology club, 3/4 attend the Chemistry club, and 3/8 attend all 3 clubs. If every student attends at least one club, we''re asked for the number of students who attend EXACTLY 2 clubs. 3-Group ...” April 26, 2018 Rich.C@EMPOWERgmat.com posted a reply to Al, Lew, and Karen pooled their funds to buy a gift for a in the Problem Solving forum “Hi All, We''re told that Al, Lew, and Karen pooled their funds to buy a gift for a friend, Al contributed$2 less than 1/3 of the cost of the gift, Lew contributed $2 more than 1/4 of the cost and Karen contributed the remaining$15. We''re asked for the total cost of the gift. This question can ...”
April 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to Need to prepare for GMAT but I don't have a lot of money... in the GMAT Strategy forum
“Hi Farah_1995, You''ve given yourself plenty of time to study - which is good. 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. Earlier this month, GMAC made a formal announcement defining some changes that will be ...”
April 26, 2018
Rich.C@EMPOWERgmat.com posted a reply to It takes Kaya a total of 9 hours to go from home to work in the Problem Solving forum
“Hi All, We''re told that it takes Kaya a total of 9 hours in TOTAL to go from home to work and back on her bike and that she travels at an average speed of 5 miles per hour from home to work and TWICE as fast coming home than going to work. We''re asked for the number of miles from her home to ...”
April 25, 2018
Rich.C@EMPOWERgmat.com posted a reply to During a particular period, an investor received $1000 a in the Problem Solving forum “Hi All, We''re told that during a particular period, an investor received$1000 a week the first week then $1000 two weeks later and then$1000 four weeks later and so on. We''re asked for the number of weeks that it took her to receive $5,000 in total. This question can probably best be solved ...” April 25, 2018 Rich.C@EMPOWERgmat.com posted a reply to The population of City X doubles every 25 years in the Problem Solving forum “Hi All, We''re told that the population of City X doubles every 25 years and that this rate continues for the foreseeable future. We''re asked for the number of CENTURIES (re: 100 years periods) it will take for the population to increase from 20,000 to 1,280,000. Since the question does NOT use ...” April 25, 2018 Rich.C@EMPOWERgmat.com posted a reply to The present ratio of students to teachers (OG2016) in the Problem Solving forum “Hi All, We''re told that the present ratio of students to teachers at a certain school is 30 to 1 and IF the student enrollment were to increase by 50 students and the number of teachers were to increase by 5, then the ratio of students to teachers would then be 25 to 1. We''re asked for the ...” April 24, 2018 Rich.C@EMPOWERgmat.com posted a reply to If 8^x = 2^12, what is x? in the Problem Solving forum “Hi All, We''re told that 8^X = 2^12. We''re asked for the value of X. This question can be solved in a number of different ways - depending on how you choose to do the math. Sometimes how you choose to "see" a GMAT question can give you a significant ''shortcut'' in solving that ...” April 24, 2018 Rich.C@EMPOWERgmat.com posted a reply to If 2^x−2^(x−2)=3∗2^(13) what is the value of x? in the Problem Solving forum “Hi All, While this question might look a bit ''scary'', you can solve it with a mix of TESTing THE ANSWERS and Arithmetic. To start, it''s worth noting that the ''right side'' of the equation is MORE than 2^13. The ''left side'' of the equation is 2^X - (another value), so we know that X MUST ...” April 24, 2018 Rich.C@EMPOWERgmat.com posted a reply to A teacher grades students' tests by subtracting twice the in the Problem Solving forum “Hi All, This question can be solved by TESTing THE ANSWERS. We''re given a few facts about a particular test and a student who took that test: 1) The score on the test is generated by subtracting TWICE the number of incorrect responses from the number of correct responses. 2) A student ...” April 23, 2018 Rich.C@EMPOWERgmat.com posted a reply to A container holding 12 ounces of a solution that is 1 in the Problem Solving forum “Hi All, We''re told that a container holding 12 ounces of a solution that is 1 part alcohol to 2 parts water is added to a container holding 8 ounces of a solution that is 1 part alcohol to 3 parts water. We''re asked for the ratio of alcohol to water in the resulting solution. Since this ...” April 23, 2018 Rich.C@EMPOWERgmat.com posted a reply to GMAT Study Plan in the GMAT Strategy forum “Hi Samra5, From your post, it''s not clear whether you''ve done any studying yet or if you''re just beginning your studies. 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: ...” April 22, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the value of y? in the Data Sufficiency forum “Hi M7MBA, We''re asked for the value of Y. 1) Y² + 8Y + 16 = 0 Fact 1 gives us a Quadratic set equal to 0, so there could only be 0, 1 or 2 possible solutions (in this type of prompt, the GMAT will not put us in a situation in which there are 0 solutions). If there is just one solution, ...” April 22, 2018 Rich.C@EMPOWERgmat.com posted a reply to There are five homes. If the median price of a home is$200, in the Data Sufficiency forum
“Hi Anaira Mitch, We''re told that the MEDIAN price of 5 homes is $200,000. We''re asked if the RANGE of all 5 prices is greater than$80,000. This is a YES/NO question and we can solve it with a bit of logic and by TESTing VALUES. Since the MEDIAN price is $200,000, we can start by ...” April 22, 2018 Rich.C@EMPOWERgmat.com posted a reply to Numbers a and b are positive integers. If a^4-b^4 is divided in the Data Sufficiency forum “Hi Anaira Mitch, We''re told that A and B are POSITIVE INTEGERS. We''re asked for the remainder when (A^4 - B^4) is divided by 3. This question is ''quirky'', but there are a couple of different ways to approach it. There are some ''shortcuts'' if you recognize the Algebra and subtle Arithmetic ...” April 22, 2018 Rich.C@EMPOWERgmat.com posted a reply to If -3x < 6, which of the following must be true? in the Problem Solving forum “Hi M7MBA, We''re told that -3X < 6. We''re asked which of the following MUST be true. This question can be approached in a couple of different ways, including by TESTing VALUES. The easiest value to choose for X would be X=0. With that one TEST, there''s only one Answer that is true... ...” April 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to What is the area of the shaded region? in the Problem Solving forum “Hi swerve, We''re told that the radius of the circle is 6 and chord AB = 6. We''re asked for the area of the shaded region. I''m going to give you a couple of hints/suggestions so that you can retry this question on your own: 1) In most questions that involve a circle, the RADIUS of the ...” April 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to Before being simplified, the instructions for computing in the Problem Solving forum “Hi All, We''re told that before being simplified, the instructions for computing income tax in country R were to ADD 2 percent of one''s annual income to the AVERAGE of 100 units of Country R''s currency and 1 percent of one''s annual income. We''re asked which of the following represents the ...” April 21, 2018 Rich.C@EMPOWERgmat.com posted a reply to A toy store regularly sells all stock at a discount of in the Problem Solving forum “Hi All, We''re told that a toy store regularly sells all stock at a discount of 20% to 40% and an additional 25% were deducted from the discounted price during a special sale. We''re asked for the lowest possible price of a toy costing$16 before any discount. When dealing with these types of ...”
April 20, 2018
Rich.C@EMPOWERgmat.com posted a reply to GMATPrep Practice Exam Problem in the Problem Solving forum
“Hi TariqOmar, 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." ...”
April 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to If n is an integer, which in the Problem Solving forum
“Hi All, We''re told that N is an INTEGER. We''re asked which of the following MUST be even (which really means "which of the following is ALWAYS EVEN no matter how many different examples we can come up with?"). This question can be solved in a couple of different ways. There are a ...”
April 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to OG City X has a population 4 times in the Problem Solving forum
“Hi All, We''re told that City X has a population 4 TIMES as great as the population of City Y, which has a population TWICE as great as the population of City Z. We''re asked for the ratio of the population of City X to the population of City Z. Based on the design of this question - and the ...”
April 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to If the average of p and 4p is 10, then p in the Problem Solving forum
“Hi VJesus12, We''re told that the average of P and 4P is 10. We''re asked for the value of P. You can solve this problem in a couple of different ways, including by TESTing the ANSWERS. Let''s start by TESTing Answer B: Answer B: 3 IF....P=3 and 4P = 12, then the average of 3 and 12 is ...”
April 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to A certain office supply store stocks 2 sizes of in the Problem Solving forum
“Hi VJesus12, The question is essentially about the Combination Formula and following instructions. However, if you don''t realize that, then you can always "brute force" the solution - you just have to draw it all out. We''re told that there are 2 sizes of notepads and 4 colors (Blue, ...”
April 19, 2018
Rich.C@EMPOWERgmat.com posted a reply to A car dealership has 40 cars on the lot, 30% of which are in the Problem Solving forum
“Hi All, We''re told that a car dealership has 40 cars on the lot, 30% of which are silver and the dealership receives a new shipment of 80 cars, 40% of which are NOT silver. We''re asked for the percentage of the total cars are silver. Since we''re given percentages - and asked a question in ...”
April 18, 2018
Rich.C@EMPOWERgmat.com posted a reply to A motorcycle stunts man belonging to a fair, rides over in the Problem Solving forum
“Hi All, We''re told that a motorcycle stuntman rides over the vertical walls of a circular well at an average speed of 54 kph for 5 minutes (in simple terms, he''s riding his motorcycle in a circle) and the radius of the well is 5 meters. We''re asked for the distance the stuntman travels. While ...”
April 18, 2018
Rich.C@EMPOWERgmat.com posted a reply to In how many ways can 4 white and 3 black chess pieces be in the Problem Solving forum
“Hi All, We''re asked for the number of ways that 4 distinct white chess pieces and 3 distinct black chess pieces can be arranged in a row such that they occupy alternate places. This question is essentially one big Permutation question and can be solved with that type of calculation. Since ...”
April 18, 2018
Rich.C@EMPOWERgmat.com posted a reply to Empower Gmat and I beated the beast. in the I just Beat The GMAT! forum
“Hi Giorgio, That''s FANTASTIC news! Raising a 610 to a 670 is a great achievement (and a Q48 will be much better for your applications than the Q44 that you scored back in January). With some additional study time, you could potentially have scored higher, but with this score you can comfortably ...”
April 18, 2018
Rich.C@EMPOWERgmat.com posted a reply to Right Triangle Inscribed in a Circle Question in the GMAT Math forum
“Hi morganmthomson7, To start, when posting questions, you should post the ENTIRE prompt - including any pictures and the 5 answer choices. Without that drawing, it''s unclear exactly what the shapes look like. If you post the full prompt, then I''ll be happy to help you work through it. In ...”
April 16, 2018
“Hi interrobong, To start, a 700 is an outstanding initial CAT Score. Assuming that you did not see any of the questions on this CAT before you took it, then you''re clearly a really strong logical thinker and Test Taker. With a bit of ''fine tuning'', you could potentially score well into the ...”
April 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to Work in progress: 450 to 640. 190 points up: 90 more to go. in the I just Beat The GMAT! forum
“Hi Aman86, GMAC recently announced some changes that will be taking place to the format of the Official GMAT (beginning April 16, 2018). These changes primarily impact the overall length of the Exam (meaning the number of questions in the Quant and Verbal sections as well as the amount of time ...”
April 16, 2018
Rich.C@EMPOWERgmat.com posted a reply to A regular polygon can be constructed with a compass and in the Problem Solving forum
“Hi vinni.k, We''re told that a regular polygon can be constructed with a compass and straightedge IF its number of sides is either ANY power of 2, ANY PRODUCT of the five distinct primes 3, 5, 17, 257, and 65537, or the PRODUCT of ANY power of 2 and ANY of the five distinct primes. We''re asked ...”
April 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to A line of people is divided into groups. Each group consists in the Problem Solving forum
“Hi swerve, Based on the wording of this prompt, there''s a great way to ''visualize'' the solution by drawing some pictures and doing a little arithmetic. Since there are no individual people in line (everyone is part of a ''group'' from 2 to 6 people), we can think about minimizing or maximizing ...”
April 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to In a certain town in Connecticut, the ratio of NY Yankees in the Problem Solving forum
“Hi swerve, We''re told that in a certain town the ratio of NY Yankees fans to NY Mets fans is 3:2, the ratio of the NY Mets fans to Boston Red Sox fans is 4:5 and there are 300 total baseball fans in the town, each of whom is a fan of JUST ONE of those three teams. We''re asked for the number of ...”
April 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to Is x > y? in the Data Sufficiency forum
“Hi VJesus12, We''re asked if X is greater than Y. This is a YES/NO question. It can be solved by TESTing VALUES (as Mitch has shown); it can also be dealt with ''conceptually.'' 1) (X + Y) > 0 Since (X+Y) is greater than 0, we know that AT LEAST one of the two variables is POSITIVE, ...”
April 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to What is the remainder when k^2 is divided by 8? in the Data Sufficiency forum
“Hi Gmat_mission, We''re asked for the remainder when K^2 is divided by 8. We can answer this question by TESTing VALUES. 1) When K is divided by 2, the remainder is 1. With the information in Fact 1, we know that K is an ODD INTEGER (for example 1, 3, 5, 7, etc.) IF.... K=1 then K^2 = ...”
April 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to Every student of a certain school must take one and only in the Problem Solving forum
“Hi GMAT_mission, We''re told that every student of a certain school took ONLY ONE elective course and last year, 1/2 of the students took biology as an elective, 1/3 of the students took chemistry as an elective, and all of the other students took physics. Then this year, 1/3 of the students who ...”
April 15, 2018
Rich.C@EMPOWERgmat.com posted a reply to How many miles long is the route from Danton to Griggston? in the Data Sufficiency forum
“Hi M7MBA, We''re asked How many miles long the route is from Danton to Griggston. This prompt is a great example of a ''concept question'' (meaning that we don''t have to do any math to correctly answer it if we recognize the concept(s) involved. 1) It is twice as far from Danton to ...”
April 14, 2018
Rich.C@EMPOWERgmat.com posted a reply to Students in a class are arranged to form groups of 4 in the Data Sufficiency forum
“Hi M7MBA, We''re told that the students in a class are arranged to form groups of 4 members each and after forming the groups, 3 students are left. If the students had been arranged in groups of 9 members each, however, 4 students would be left. We''re asked for the total number of students in ...”
April 14, 2018
Rich.C@EMPOWERgmat.com posted a reply to If mn < np < 0, is n < 1? in the Data Sufficiency forum
“Hi M7MBA, We''re told that (M)(N) < (N)(P) < 0. We''re asked if N is less than 1. This is a YES/NO question and can be answered with a mix of Number Properties and TESTing VALUES. To start, since (M)(N) and (N)(P) are both less than 0, we know that one of the variables in each pair ...”
April 14, 2018
Rich.C@EMPOWERgmat.com posted a reply to If a is to be chosen at random from the integers between in the Problem Solving forum
“Hi All, We''re told that "A" is to be chosen at random from the integers between 1 to 5, inclusive, and "B" is to be chosen at random from the integers between 6 and 10, inclusive. We''re asked for the probability that A+B will be EVEN. This question is based on some Number ...”
April 14, 2018
Rich.C@EMPOWERgmat.com posted a reply to Is ab < 0 ? in the Data Sufficiency forum
“Hi VJesus12, We''re asked if (A)(B) is less than 0. This is a YES/NO question and can be solved by TESTing VALUES. 1) A = B - 6 IF.... A=0, and B=6, then (A)(B) = 0 and the answer to the question is NO. A= -1, and B=5, then (A)(B) = -5 the answer to the question is YES. Fact 1 is ...”
April 13, 2018
Rich.C@EMPOWERgmat.com posted a reply to If an organization were to sell n tickets for a theater in the Problem Solving forum
“Hi All, We''re told that if an organization were to sell N tickets for a theater production, then the total revenue from ticket sales would be 20 percent GREATER than the total costs of the production. We''re asked if the organization actually sold all BUT 5 percent of the N tickets, then the ...”
April 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to A bag consists of 20 marbles, of which 5 are blue, 9 are red in the Problem Solving forum
“Hi All, We''re told that a bag consists of 20 marbles: 5 are blue, 9 are red, and the remainder are white. We''re asked for the probability of randomly selecting one marble that will EITHER be red OR white. When it comes to probability questions, sometimes it''s easiest to determine the ...”
April 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to Study intensive plan - 12 weeks? in the I just Beat The GMAT! forum
“Hi joanap, When it comes to studying for the GMAT, there isn''t a ''one size fits all'' Study Plan - and many GMATers end up adapting their studies as they become more aware of their particular strengths and weaknesses. This sometimes involves investing in new study materials. Based on what ...”
April 12, 2018
Rich.C@EMPOWERgmat.com posted a reply to Last school year, each of the 200 students in the Data Sufficiency forum
“Hi olilondon, The initial data in the prompt tells us that there are 200 students in the school and 8 performances. The information in Fact 2 tells us that the average number of performances attended PER STUDENT (meaning "per student in the school") was 4. By extension, that means that ...”
April 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to Arithmetic Probability in the Problem Solving forum
“Hi All, We''re told that among a group of 2,500 people, 35 percent invest in municipal bonds, 18 percent invest in oil stocks, and 7 percent invest in both municipal bonds and oil stocks. We''re asked if 1 person is to be randomly selected from the 2,500 people, what is the probability that the ...”
April 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to A dress on sale in a shop is marked at SD. During the in the Problem Solving forum
“Hi All, We''re told that the normal price of a dress is D, but when on sale has its price reduced by 15% and the staff are allowed a further 10% reduction on the discounted price. We''re asked for a staff member''s price in terms of D. This question can be solved by TESTing VALUES. IF.... ...”
April 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to An artist who needs to buy only paint and canvas finds that in the Problem Solving forum
“Hi All, We''re told that an artist who needs to buy only paint and canvas finds that the cost of the canvas has decreased by 40 percent, the cost of paint has decreased by 60 percent and the paint previously accounted for 4 TIMES as much of the expense of painting as did canvas. We''re asked for ...”
April 10, 2018
Rich.C@EMPOWERgmat.com posted a reply to How many factors of 330 are odd numbers greater than 1? in the Problem Solving forum
“Hi All, We''re asked for the number of ODD factors of 330 that are greater than 1. Looking at the answer choices, we know that there are at least 3, but no more than 7, ODD factors, so a bit of ''brute force'' and prime factorization could get us the correct answer without too much trouble. ...”
April 10, 2018