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What is the sum of a certain pair of consecutive odd

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Director
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Joined: 06 Jan 2008
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What is the sum of a certain pair of consecutive odd [#permalink] New post 04 May 2008, 11:56
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What is the sum of a certain pair of consecutive odd integers?
(1) At least one of the integers is negative.
(2) At least one of the integers is positive
Manager
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Joined: 16 Sep 2007
Posts: 215
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Re: DS - consecutive odd [#permalink] New post 04 May 2008, 12:03
1)
-1+-3=-4
-3+-5=-8

insufficient

2)
1+3=4
3+5=8

insufficient

1&2)
the only consecutive odd integers that can have different signs are -1 and 1

-1+1=0

sufficient

C
Re: DS - consecutive odd   [#permalink] 04 May 2008, 12:03
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