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mttorii
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PostPosted: Thu Jul 05, 2007 5:41 pm    Post subject: Gmat prep question Reply with quote
Hi all. Can someone help me to solve this question. The right answer is C.
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givemeanid
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PostPosted: Thu Jul 05, 2007 6:12 pm    Post subject: Reply with quote
You need to find number of pairs of consecutive terms whose product is negative.

1 * -3 = -3
-3 * 2 = -6
2 * 5 = 10
5 * -4 = -20
-4 * -6 = 24

The number of -ve products is 3. Answer is C.
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