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GMATPrep1 - DS

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GMATPrep1 - DS [#permalink] New post 21 Apr 2008, 22:21
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0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Try this OA : C
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Re: GMATPrep1 - DS [#permalink] New post 21 Apr 2008, 22:33
Maybe D?

xy is even only if x or y is even.

Let x and y are odd.

1) 5*odd-4*odd = odd - even = odd. Sufficient

2) 6*odd+7*odd = even + odd = odd. Sufficient
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Re: GMATPrep1 - DS [#permalink] New post 21 Apr 2008, 22:42
yup. did it same way. thought it was good one.
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Re: GMATPrep1 - DS [#permalink] New post 21 Apr 2008, 23:13
kyatin wrote:
Try this OA : C


1) tells that x is even. suff for xy to be even

2) tells that y is even. suff for xy to be even

D
Re: GMATPrep1 - DS   [#permalink] 21 Apr 2008, 23:13
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