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DS problem

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Intern
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Joined: 13 Jan 2010
Posts: 23
Followers: 1

Kudos [?]: 3 [0], given: 10

DS problem [#permalink] New post 19 Jan 2010, 18:01
What is the sum of integers and ?
1. |A| = -|B|
2. |B| = -|A|
 Statement (1) ALONE is sufficient, but Statement (2) ALONE is not sufficient
 Statement (2) ALONE is sufficient, but Statement (1) ALONE is not sufficient
 BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient
 EACH statement ALONE is sufficient
 Statements (1) and (2) TOGETHER are NOT sufficient

Can we interet statement 1 to be A = -B or -A = -B i.e. A = B? Same for statement 2.
I picked E as the answer as both Statement 1 and 2 can give 2 results.

Need advice on the correct answer and the reasoning.
Tuck Thread Master
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Joined: 20 Aug 2009
Posts: 312
Location: Tbilisi, Georgia
Schools: Stanford (in), Tuck (WL), Wharton (ding), Cornell (in)
Followers: 12

Kudos [?]: 86 [0], given: 69

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Re: DS problem [#permalink] New post 20 Jan 2010, 03:44
There is only one case when |A|=-|B|, that is when A=B=0. Thus A+B=0

Same goes for the second statement. It should be (D)
Re: DS problem   [#permalink] 20 Jan 2010, 03:44
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