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Trip A is 6x miles long and takes 5y hours. Trip B is 5x mil

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GMAT Club Legend
GMAT Club Legend
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Joined: 07 Jun 2014
Posts: 4720
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1622 [0], given: 385

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Trip A is 6x miles long and takes 5y hours. Trip B is 5x mil [#permalink] New post 22 Nov 2017, 19:05
Expert's post
00:00

Question Stats:

66% (01:08) correct 33% (00:30) wrong based on 3 sessions
Trip A is 6x miles long and takes 5y hours. Trip B is 5x miles long and takes 4y hours.

Quantity A
Quantity B
The rate of trip A in miles per hour
The rate of trip B in miles per hour


A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal.
D. The relationship cannot be determined from the information given.

Drill 2
Question: 2
Page: 524
[Reveal] Spoiler: OA

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Sandy
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GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jun 2014
Posts: 4720
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1622 [0], given: 385

CAT Tests
Re: Trip A is 6x miles long and takes 5y hours. Trip B is 5x mil [#permalink] New post 29 Dec 2017, 13:13
Expert's post
Explanation

Rate is calculated by dividing the distance traveled by the time elapsed. Plug In to compare the two rates. If you plug in x= 4 and y = 2, the rate for trip A will be:
\(\frac{6(4)}{5(2)}=\frac{24}{10}=2.4\) mph and the rate for trip B will be: \(\frac{5(4)}{4(2)}=\frac{24}{10}=2.4\) mph; eliminate choices (A) and (C).

Any set of values will have a greater rate for trip B, so select choice B.
_________________

Sandy
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Re: Trip A is 6x miles long and takes 5y hours. Trip B is 5x mil   [#permalink] 29 Dec 2017, 13:13
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Trip A is 6x miles long and takes 5y hours. Trip B is 5x mil

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