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Junior | Next Rank: 30 Posts
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by cks » Mon Dec 24, 2007 4:02 pm
Pls explain
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by beingAndNothing » Mon Dec 24, 2007 4:34 pm
Is the Answer (C)

There are 3 pairs of numbers with a negative product.
(1,-3)
(-3,2)
(5,-4)
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Junior | Next Rank: 30 Posts
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by cks » Mon Dec 24, 2007 4:49 pm
Yes . The OA C. But can u explain the question for me. I did not understand the question.
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by beingAndNothing » Mon Dec 24, 2007 5:55 pm
The questions asks for the number of pairs where the product of the two numbers in the pair is negative. Also, the pair is chosen such that the two
numbers are consecutive in the given series.

So the various pairs are
(1,-3); (-3,2); (2,5); (5,-4); (-4,-6)

Now if take the product of the pairs and we have the pairs
(1,-3); (-3,2); (5,-4), which give negative product.

Let me know if this helps.
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by cks » Mon Dec 24, 2007 6:30 pm
Thanks
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