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GMAT Prep test -arithmetic question

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GMAT Prep test -arithmetic question [#permalink] New post 29 May 2008, 00:29
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

One question from GMAT Prep test. I am not able to solve it, Can any one help me in find ing the answer?

If XY=1 then what would be the value of 2 (x+y)^2 / 2 (x-y)^2

Ans:
A 2
B 4
C 8
D 16
E 32

The answer it showing as D (16) . I didn't understand the answer!
With the given information (i.e., XY=1) how can we solve the given equation?.

Regards,
Mahesh
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Regards,
Mahesh Vollala

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Re: GMAT Prep test -arithmetic question [#permalink] New post 29 May 2008, 02:47
Hi Mahesh

Are you sure you have copied the question correcly.
Doesn't seem right to me.
Re: GMAT Prep test -arithmetic question   [#permalink] 29 May 2008, 02:47
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GMAT Prep test -arithmetic question

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