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number properties

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by Xbond » Sat Aug 30, 2008 7:02 am
If x <0, is Y >0 ?

(1) X/Y <0

(2) Y-X >0


I have some problems to define (2) for sure. Can you help me ?
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Source: — Data Sufficiency |
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Re: number properties

by sudhir3127 » Sat Aug 30, 2008 8:18 am
Xbond wrote:If x <0, is Y >0 ?

(1) X/Y <0

(2) Y-X >0



I have some problems to define (2) for sure. Can you help me ?
i go with A

statement 1 X/Y<0

if X<0 for the above equation to hold hold Y has to be >0

hence sufficient


statement 2. Y-X >0

if X< 0 assume it 2 b -4

and y = -1

the it will 3 which is >0

if Y = 3 and X -1 then it will be 4 >0

hence insufficient..

hence A
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by Xbond » Sat Aug 30, 2008 8:21 am
many thks
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