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# Compare

Author Message
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Retired Moderator
Joined: 07 Jun 2014
Posts: 4803
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 171

Kudos [?]: 2934 [0], given: 394

Compare [#permalink]  29 Apr 2018, 00:44
Expert's post
00:00

Question Stats:

92% (00:26) correct 7% (00:26) wrong based on 14 sessions
 Quantity A Quantity B $$(y-x)^{7}$$ $$(y-x)^{2}$$

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.
[Reveal] Spoiler: OA

_________________

Sandy
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Intern
Joined: 19 Apr 2018
Posts: 1
Followers: 0

Kudos [?]: 2 [2] , given: 5

Re: Compare [#permalink]  03 May 2018, 02:13
2
KUDOS
I think the correct answer is D.

Explanation:
y=1, x=1,then: 0=0
y=3, x=1,then: 123>4
y=1, x=3,then: -123<4
Retired Moderator
Joined: 07 Jun 2014
Posts: 4803
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 171

Kudos [?]: 2934 [0], given: 394

Re: Compare [#permalink]  13 May 2018, 15:38
Expert's post
Explanation

Try plugging in values for x and y.

If x = 1 and y = 3, then Quantity A is $$2^7$$ and Quantity B is $$2^2$$.

Quantity A is greater, so eliminate choices (B) and (C).

Then try x = 1 and y = 1; now both quantities are equal, so eliminate choice (A) and select choice (D).
_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

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Re: Compare   [#permalink] 13 May 2018, 15:38
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