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# fractional inequality Ds paper test

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Manager
Joined: 01 Dec 2007
Posts: 52
fractional inequality Ds paper test [#permalink]

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17 Sep 2008, 02:37
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Question Stats:

100% (01:02) correct 0% (00:00) wrong based on 1 sessions

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answer is D. please make us understand the required stragedy ?

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Director
Joined: 14 Aug 2007
Posts: 702
Re: fractional inequality Ds paper test [#permalink]

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17 Sep 2008, 04:53
since r,s>0

we have to find if r^2 < s^2

1) tells us that r = 3/4 s; r^2 = 9/16 s^2
suff

2) s = r + 4; thus s is greater than r again suff.

D

And please dont post OAs in first post!
SVP
Joined: 17 Jun 2008
Posts: 1502
Re: fractional inequality Ds paper test [#permalink]

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18 Sep 2008, 01:19
Since both r and s are positive, what the question is actually asking is whther r/s r/s.

Now stmt1 clearly says that r/s < 1 and hence it answers the question.

stmt2 also says that s is more than r and hence r/s is less than 1 and hence sufficient.

Hence, D.

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Re: fractional inequality Ds paper test   [#permalink] 18 Sep 2008, 01:19
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# fractional inequality Ds paper test

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