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# Q1 If x and y are positive, is x/y greater than 1 ? a)

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Manager
Joined: 05 Mar 2007
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Q1 If x and y are positive, is x/y greater than 1 ? a) [#permalink]  18 Jul 2007, 23:14
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Q1

If x and y are positive, is x/y greater than 1 ?

a) xy>1
b) x-y>0

FP
Senior Manager
Joined: 28 Feb 2007
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B.
a) x=4 y=1/2 YES but x=1/2 y=4 NO so INsuff.
b)x-y>0 then x>y so x/y>0 SUFF
Intern
Joined: 12 Jun 2007
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Another way:-

Stm 1: xy>1 then x/y>1/y meaning x/y could be less than or greater than 1 depending whether y is <or> 1.

Stm 2: same as UMB.

Thanks.
Intern
Joined: 12 Jun 2007
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Correction: It shall be x/y>1/y^2 in stm 1. Then also logic is same.
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