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DS GMAT Prep IS |X-Y| > |X| - |Y| ?

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DS GMAT Prep IS |X-Y| > |X| - |Y| ?  [#permalink]

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New post 20 Aug 2017, 07:17
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IS |X-Y| > |X| - |Y| ?

a) Y<X
b) XY<0

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Re: DS GMAT Prep IS |X-Y| > |X| - |Y| ?  [#permalink]

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New post 20 Aug 2017, 10:44
1
Answer: B
IS |X-Y| > |X| - |Y| ?
a) Y<X
b) XY<0

Statement A:
If, Y=-1 X=1 then LHS=2 and RHS=0 -->Correct
If, Y=1 X=3 then LHS=2 and RHS=2 -->Incorrect
Thus INSUFFICIENT

Statement B:
Either of X or Y is -ve.
If, Y=-1 X=1 then LHS=2 and RHS=0 -->Correct
If, Y=1 X=-3 then LHS=4 and RHS=2 -->Correct
Thus SUFFICIENT
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Re: DS GMAT Prep IS |X-Y| > |X| - |Y| ?  [#permalink]

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New post 20 Aug 2017, 11:10
gmatexam439 wrote:
Answer: B
IS |X-Y| > |X| - |Y| ?
a) Y<X
b) XY<0

Statement A:
If, Y=-1 X=1 then LHS=2 and RHS=0 -->Correct
If, Y=1 X=3 then LHS=2 and RHS=2 -->Incorrect
Thus INSUFFICIENT

Statement B:
Either of X or Y is -ve.
If, Y=-1 X=1 then LHS=2 and RHS=0 -->Correct
If, Y=1 X=-3 then LHS=4 and RHS=2 -->Correct
Thus SUFFICIENT




Thank you for the explanation

Yes OA is B.

And i was making some calculation mistake during exam and was not able to figure out the root cause.

Guess i have to use pen and paper to get rid of such mistakes.
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DS GMAT Prep IS |X-Y| > |X| - |Y| ?  [#permalink]

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New post 20 Aug 2017, 20:41
prihriv wrote:
IS |X-Y| > |X| - |Y| ?

a) Y<X
b) XY<0


Hi @prahriv

Please read and follow the rules before posting question

P.S Moving it to the appropriate forum
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Re: DS GMAT Prep IS |X-Y| > |X| - |Y| ?  [#permalink]

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New post 20 Aug 2017, 23:10
prihriv wrote:
IS |X-Y| > |X| - |Y| ?

a) Y<X
b) XY<0


Discussed here: is-x-y-x-y-123108.html

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.


If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: DS GMAT Prep IS |X-Y| > |X| - |Y| ?   [#permalink] 20 Aug 2017, 23:10
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