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Intern
Intern
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Joined: 19 Jan 2009
Posts: 18

Kudos [?]: 11 [0], given: 0

Schools: Kellogg, Ross, Darden, Kelley, UNC
and the best for last [#permalink]

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New post 18 May 2009, 12:02
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A
B
C
D
E

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Kudos [?]: 11 [0], given: 0

Current Student
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Joined: 13 May 2008
Posts: 141

Kudos [?]: 25 [0], given: 6

Schools: LBS
Re: Gmatprep abs value [#permalink]

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New post 18 May 2009, 12:27
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.

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Senior Manager
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Joined: 08 Jan 2009
Posts: 326

Kudos [?]: 175 [0], given: 5

Re: Gmatprep abs value [#permalink]

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New post 18 May 2009, 20:11
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

Kudos [?]: 175 [0], given: 5

Re: Gmatprep abs value   [#permalink] 18 May 2009, 20:11
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