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If |ab| > ab, which of the following must be true? I. a

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Director
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If |ab| > ab, which of the following must be true? I. a [#permalink] New post 16 Oct 2007, 14:55
If |ab| > ab, which of the following must be true?

I. a < 0
II. b < 0
III. ab < 0


I only

II only

III only
I and III
II and III
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Re: absolute [#permalink] New post 16 Oct 2007, 14:58
alimad wrote:
If |ab| > ab, which of the following must be true?

I. a < 0
II. b < 0
III. ab < 0


I only

II only

III only
I and III
II and III


III only,

I. a<0, it can be but what if b<0
II. b<0, can be but what if a<0
III. ab<0, only here we can say the above inequality is true
Director
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Schools: University of Chicago, Wharton School
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Re: absolute [#permalink] New post 16 Oct 2007, 19:34
alimad wrote:
If |ab| > ab, which of the following must be true?

I. a < 0
II. b < 0
III. ab < 0


I only

II only

III only
I and III
II and III


III. |ab| > ab only if ab is -ve.
Re: absolute   [#permalink] 16 Oct 2007, 19:34
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If |ab| > ab, which of the following must be true? I. a

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