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GPrep DS2

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Director
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Joined: 01 Aug 2008
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Kudos [?]: 825 [0], given: 99

GPrep DS2 [#permalink]

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New post 26 Apr 2009, 16:16
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please solve it for me.
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Kudos [?]: 825 [0], given: 99

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Manager
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Joined: 02 Mar 2009
Posts: 134

Kudos [?]: 52 [1], given: 0

Re: GPrep DS2 [#permalink]

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New post 27 Apr 2009, 02:06
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(1): Since x<0, abs(x) will give a postive number which will cancel with the negative x. This will yield 0.

(2); Since y<1, It can either be 0 or negative. It cannot be a fraction because the question tells us that y is an integer. Now can it be negative? Y depens on x. If x is positive, y=2x (not possible in this case as y<1). If x is negative, the two x's will cancel and yield 0. Therefore y has to be 0.

D

Kudos [?]: 52 [1], given: 0

Director
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Joined: 01 Aug 2008
Posts: 730

Kudos [?]: 825 [0], given: 99

Re: GPrep DS2 [#permalink]

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New post 27 Apr 2009, 04:49
shkusira wrote:
(1): Since x<0, abs(x) will give a postive number which will cancel with the negative x. This will yield 0.

(2); Since y<1, It can either be 0 or negative. It cannot be a fraction because the question tells us that y is an integer. Now can it be negative? Y depens on x. If x is positive, y=2x (not possible in this case as y<1). If x is negative, the two x's will cancel and yield 0. Therefore y has to be 0.

D



got it .. thank you... I didn't realize that y = 2x case can't possible.

+1 for ya.

Appreciate.

Kudos [?]: 825 [0], given: 99

Re: GPrep DS2   [#permalink] 27 Apr 2009, 04:49
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