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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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Senior Manager
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Joined: 28 Mar 2017
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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
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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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Intern
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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

Kudos [?]: 128551 [0], given: 12180

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