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# and the best for last

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Intern
Joined: 18 Jan 2009
Posts: 18
Schools: Kellogg, Ross, Darden, Kelley, UNC
and the best for last [#permalink]

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18 May 2009, 11:02
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... and the best for last
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Current Student
Joined: 13 May 2008
Posts: 141
Schools: LBS

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18 May 2009, 11:27
looking at statement 2 only: no matter what value you put for x you end up with a positive number on the LHS which is supposed to be less than -y ... how is that possible when y is greater than or equal to 0... well thats only possible when y=0... so inequality in ST2 basically rules out all other possible values for x except 0, giving you the answer.
Senior Manager
Joined: 08 Jan 2009
Posts: 324

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18 May 2009, 19:11
y >=0

Stmt 1 :

|x-3| >= y

x can be +ve ,-ve 0r 0. So not sufficient.

stmt 2 :
|x-3| <= -y

The LHS is a modulus so it is zero or +ve .
For LHS to less than -y it has to be zero so x-3 =0 and x = 3

Sufficient.

Ans, B
Re: Gmatprep abs value   [#permalink] 18 May 2009, 19:11
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# and the best for last

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