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

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Director
Joined: 10 Feb 2006
Posts: 664
Followers: 3

Kudos [?]: 146 [0], given: 0

If |ab| > ab, which of the following must be true? I. a [#permalink]  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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VP
Joined: 09 Jul 2007
Posts: 1107
Location: London
Followers: 6

Kudos [?]: 76 [0], given: 0

Re: absolute [#permalink]  16 Oct 2007, 14:58
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
Joined: 03 May 2007
Posts: 888
Schools: University of Chicago, Wharton School
Followers: 6

Kudos [?]: 75 [0], given: 7

Re: absolute [#permalink]  16 Oct 2007, 19:34
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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