GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Working independently, Machine A can complete a work in 3.5 hours, whi
[#permalink]
20 Sep 2021, 03:45
20 Sep 2021, 03:45
Expert Reply
3
Bookmarks
00:00
Question Stats:
86% (01:36) correct
14% (02:19) wrong based on 50 sessions
Hide Show timer Statistics
Working independently, Machine A can complete a work in 3.5 hours, while Machine B can complete the same work in x hours. Working simultaneously, they together complete the same work in 1.5 hours.
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Source: manhattanreview
Quantity A |
Quantity B |
3 |
x |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Source: manhattanreview
Retired Moderator
Joined: 19 Nov 2020
Posts: 326
Given Kudos: 64
GRE 1: Q160 V152
Working independently, Machine A can complete a work in 3.5 hours, whi
[#permalink]
20 Sep 2021, 05:12
20 Sep 2021, 05:12
1
\(1/3.5+1/x=1/1.5\)
\(2/7+1/x=2/3\)
multiply both sides by \(21x\), \(6x+21=14x\), \(x=21/8\)
Quantity A: \(3\)
Quantity B: \(21/8\)
Quantity A > Quantity B
Answer is A
\(2/7+1/x=2/3\)
multiply both sides by \(21x\), \(6x+21=14x\), \(x=21/8\)
Quantity A: \(3\)
Quantity B: \(21/8\)
Quantity A > Quantity B
Answer is A
Carcass wrote:
Working independently, Machine A can complete a work in 3.5 hours, while Machine B can complete the same work in x hours. Working simultaneously, they together complete the same work in 1.5 hours.
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Source: manhattanreview
Quantity A |
Quantity B |
3 |
x |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Source: manhattanreview
Working independently, Machine A can complete a work in 3.5 hours, whi
[#permalink]
06 May 2022, 23:04
06 May 2022, 23:04
in 2/7 + 1/x = 2/3 eqn, doesnt '1/x' become '2/2x' since multiplied by 2
