Search found 134 matches
Re: If \(5(x+y)=125\) and \(3(x-3y)=19,\) then \(y =\)
If \(5(x+y)=125\) and \(3(x-3y)=19,\) then \(y =\) A. \(-\dfrac52\) B. \(\dfrac14\) C. \(\dfrac12\) D. \(\dfrac52\) E. \(\dfrac54\) Answer: E Source: Magoosh This question is wrong at so many levels Here is the proper question https://gmatclub.com/forum/if-5-x-y-125-and-3-x-3y-1-9-then-y-274201.html
- by gmatter2012
Mon Nov 16, 2020 5:19 am- Forum: Problem Solving
- Topic: If \(5(x+y)=125\) and \(3(x-3y)=19,\) then \(y =\)
- Replies: 2
- Views: 423
Re: Helen mixes a first solution, 4 liters of 40% concentrated sulfuric acid solution,
Helen mixes a first solution, 4 liters of 40% concentrated sulfuric acid solution, with a second solution, 5 liters of a sulfuric acid solution with a stronger concentration, and the resultant solution is 9 liters of 50% concentrated sulfuric acid solution. What was the concentration, as a percent,...
- by gmatter2012
Wed Oct 07, 2020 7:59 am- Forum: Problem Solving
- Topic: Helen mixes a first solution, 4 liters of 40% concentrated sulfuric acid solution,
- Replies: 3
- Views: 435
Re: Of the science books in a certain supply room, 50 are on botany, 65 are
: Of the science books in a certain supply room, 50 are on botany, 65 are on zoology, 90 are on physics, 50 are on geology, and 110 are on chemistry. If science books are removed randomly from the supply room, how many must be removed to ensure that 80 of the books removed are on the same science? A...
- by gmatter2012
Wed Oct 07, 2020 7:47 am- Forum: Problem Solving
- Topic: Of the science books in a certain supply room, 50 are on botany, 65 are
- Replies: 3
- Views: 385
Re: Beth received 3/10 of the votes cast in a certain election. What
quote=BTGModeratorVI post_id=854906 time=1602083875 user_id=419983] Beth received 3/10 of the votes cast in a certain election. What fraction of the other votes cast would she have needed in order to have received 1/2 of the votes cast? A. 1/5 B. 2/7 C. 3/10 D. 7/20 E. 1/2 Answer: B Source: official...
- by gmatter2012
Wed Oct 07, 2020 7:27 am- Forum: Problem Solving
- Topic: Beth received 3/10 of the votes cast in a certain election. What
- Replies: 3
- Views: 370
The formula above gives the contribution \(C,\) in dollars, to a certain profit-sharing plan for a participant with a
Problem Solving
Re: The formula above gives the contribution \(C,\) in dollars, to a certain profit-sharing plan for a participant with
\(C=\begin{cases} 0.10s, \; \text{if} \; s\le 60,000,\\ 0.10s +0.4(s-60,000), \; \text{if} \; s> 60,000. \end{cases}\) The formula above gives the contribution \(C,\) in dollars, to a certain profit-sharing plan for a participant with a salary of \(s\) dollars. How many more dollars is the contribu...
- by gmatter2012
Mon Sep 21, 2020 9:24 pm- Forum: Problem Solving
- Topic: The formula above gives the contribution \(C,\) in dollars, to a certain profit-sharing plan for a participant with a
- Replies: 3
- Views: 562
If a number p is prime, and 2p+1 = q, where q is also prime, then the decimal expansion of 1/q will produce a decimal
Problem Solving
Re: If a number p is prime, and 2p+1 = q, where q is also prime, then the decimal expansion of 1/q will produce a decima
If a number p is prime, and 2p+1 = q, where q is also prime, then the decimal expansion of 1/q will produce a decimal with q-1 digits. If this method produces a decimal with 166 digits, what is the units digit of the product of p and q? A. 1 B. 3 C. 5 D. 7 E. 9 OA E Source: Veritas Prep Please corr...
- by gmatter2012
Sat Sep 19, 2020 9:00 pm- Forum: Problem Solving
- Topic: If a number p is prime, and 2p+1 = q, where q is also prime, then the decimal expansion of 1/q will produce a decimal
- Replies: 1
- Views: 409
A set of 10 numbers has an average (arithmetic mean) of 12. When a subset of numbers, which has an average of 15, is
Problem Solving
Re: A set of 10 numbers has an average (arithmetic mean) of 12. When a subset of numbers, which has an average of 15, is
A set of 10 numbers has an average (arithmetic mean) of 12. When a subset of numbers, which has an average of 15, is removed from the original set, the sum of the remaining numbers is 60. How many numbers remain from the original set? A. 3 B. 4 C. 5 D. 6 E. 8 Answer: D Source: Princeton Review So t...
- by gmatter2012
Fri Sep 11, 2020 4:17 am- Forum: Problem Solving
- Topic: A set of 10 numbers has an average (arithmetic mean) of 12. When a subset of numbers, which has an average of 15, is
- Replies: 2
- Views: 345
A machine has two flat circular plates of the same diameter both plates have holes of one inch diameter that are equally
Problem Solving
Re: A machine has two flat circular plates of the same diameter both plates have holes of one inch diameter that are equ
A machine has two flat circular plates of the same diameter both plates have holes of one-inch diameter that are equally placed and are the same from the edges as shown above. one plate is placed on top of the other so that their centers are aligned and two of the holes are perfectly aligned. If on...
- by gmatter2012
Sat Sep 05, 2020 1:00 am- Forum: Problem Solving
- Topic: A machine has two flat circular plates of the same diameter both plates have holes of one inch diameter that are equally
- Replies: 2
- Views: 490
Q . If x and y are positive integers, what is the value of \(\frac{x}{\left(x+y\right)}\)
Data Sufficiency
Re: Q . If x and y are positive integers, what is the value of \(\frac{x}{\left(x+y\right)}\)
Solution: Forget conventional ways of solving math questions. For DS problems, the VA (Variable Approach) method is the quickest and easiest way to find the answer without actually solving the problem. Remember that equal numbers of variables and independent equations ensure a solution. Visit https...
- by gmatter2012
Fri Sep 04, 2020 3:29 am- Forum: Data Sufficiency
- Topic: Q . If x and y are positive integers, what is the value of \(\frac{x}{\left(x+y\right)}\)
- Replies: 2
- Views: 300
Given four rods of length 1 meter, 3 meters, 5 meters, and 7 meters, how many different triangles can be made using one
Problem Solving
Re: Given four rods of length 1 meter, 3 meters, 5 meters, and 7 meters, how many different triangles can be made using
Given four rods of length 1 meter, 3 meters, 5 meters, and 7 meters, how many different triangles can be made using one rod for each side? A. 6 B. 4 C. 3 D. 2 E. 1 Answer: E Source: Princeton Review Dear Moderator Please check the answer in the timer. Although in the spoiler you have written E but ...
- by gmatter2012
Tue Sep 01, 2020 2:00 am- Forum: Problem Solving
- Topic: Given four rods of length 1 meter, 3 meters, 5 meters, and 7 meters, how many different triangles can be made using one
- Replies: 3
- Views: 411
Re: DS 7
Please correct the answer , Answer is B .
KANISHKA12 please check the answers you are providing.
- by gmatter2012
Tue Sep 01, 2020 1:34 am- Forum: Problem Solving
- Topic: DS 7
- Replies: 2
- Views: 402
Re: DS 5
Please correct the OA , answer should be E
7 Yes
11 NO
Both 7 and 11 are eligible for (i) and (ii) statements. For a 7 we have yes for 11 we have no.
Hence answer is E.
- by gmatter2012
Tue Sep 01, 2020 1:32 am- Forum: Problem Solving
- Topic: DS 5
- Replies: 1
- Views: 279
If Aidan were 10 years older, he would be twice as old as Tucker. Is Aidan older than Tucker?
Data Sufficiency
Re: If Aidan were 10 years older, he would be twice as old as Tucker. Is Aidan older than Tucker?
There is a typo, in option B it should be younger than 10 NOT 100.BTGmoderatorDC wrote: ↑Sat Aug 29, 2020 7:13 pmIf Aidan were 10 years older, he would be twice as old as Tucker. Is Aidan older than Tucker?
(1) Tucker is older than 8
(2) Aidan is younger than 100
OA B
Source: Veritas Prep
- by gmatter2012
Sun Aug 30, 2020 9:36 pm- Forum: Data Sufficiency
- Topic: If Aidan were 10 years older, he would be twice as old as Tucker. Is Aidan older than Tucker?
- Replies: 2
- Views: 396
Adam is one among many employees of ABC ltd., who procures shoes at an average cost of $40. His yearly procurement budge
Data Sufficiency
Re: Adam is one among many employees of ABC ltd., who procures shoes at an average cost of $40. His yearly procurement b
Adam is one among many employees of ABC ltd., who procures shoes at an average cost of $40. His yearly procurement budget is $19,000 and he receives an additional budget of $3,000, if the total number of shoes sold by the company in a year exceeds 4,000 units. Did Adam receive the additional budget...
- by gmatter2012
Sat Aug 22, 2020 7:29 am- Forum: Data Sufficiency
- Topic: Adam is one among many employees of ABC ltd., who procures shoes at an average cost of $40. His yearly procurement budge
- Replies: 1
- Views: 333
Re: Is \(b\) even?
Is \(b\) even? (1) \(\dfrac{a}{b}\) is even. (2) \((a+1)b\) is even. Answer: E Source: Veritas Prep With due respect I think OA may be wrong . (1) \(\dfrac{a}{b}\) is even. \(\frac{10}{5\ }\)=2 Here b is odd \(\frac{12}{6}\) =2 Here b is even INSUFF. (2) \((a+1)b\) is even. \(b\) could be even or \...
- by gmatter2012
Sat Aug 22, 2020 6:59 am- Forum: Data Sufficiency
- Topic: Is \(b\) even?
- Replies: 1
- Views: 314