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finite numbers

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by naaga » Tue Feb 17, 2009 6:43 pm
For a finite sequence of nonzero numbers, the number of variations in the sign is defined as the number of pairs of consecutive terms of the sequence for which the product of the two consecutive terms is negative. What is the number of variations in sigh for the sequence 1,-3, 2, 5, -4, -6 ?
1
2
3
4
5

folks plz help me out, the problem is abstruse to me ?


















OA is 3
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by sureshbala » Tue Feb 17, 2009 7:48 pm
Dear naaga, this query was already answered. Here is the link for the same.

https://www.beatthegmat.com/hard-time-un ... 13483.html
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rep

by naaga » Tue Feb 17, 2009 9:35 pm
thankyou sureshbala
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