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Question for Manhattan CAT

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CHAPPARFELLOW
 Post subject: Question for Manhattan CAT
 Post Posted: Thu Sep 15, 2011 8:17 pm 
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Students


Posts: 1
Found this question on one of the mock exams.

Is x·|y| > y2?

(1) x > y
(2) y > 0

The correct answer is given as 'D' (both statements are sufficient)

If you take x = 2 and y = 1, then you get x - |y| = Y^2.
For all other valuse of x and y, such that x > y and y>0, we see that y^2 is greater..

Based on this, shouldnt that answer be E? What am I missing?
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jnelson0612
 Post subject: Re: Question for Manhattan CAT
 Post Posted: Sat Oct 29, 2011 11:39 pm 
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ManhattanGMAT Staff


Posts: 1857
CHAPPARFELLOW wrote:
Found this question on one of the mock exams.

Is x·|y| > y2?

(1) x > y
(2) y > 0

The correct answer is given as 'D' (both statements are sufficient)

If you take x = 2 and y = 1, then you get x - |y| = Y^2.
For all other valuse of x and y, such that x > y and y>0, we see that y^2 is greater..

Based on this, shouldnt that answer be E? What am I missing?


Question: does the test question also say that xy is not equal to zero? I think that is hugely important here and if you can confirm that I can answer your question.

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Jamie Nelson
ManhattanGMAT Instructor
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