Sequences

[b.omolehinwa]

Help please. Source is GMAT prep.

For a finite set of nonzero numbers, the number of variations in sign is defined as the number of pairs of consecutive terms of the sequence for which the product of the consecutive terms is negative. What is the number of variations in sign for the sequence 1, -3, 2, 5, -4, -6?

a. 1
b. 2
c. 3
d. 4
e. 5

[RonPurewal]

Hi,
Please search the forum before posting.

post35681.html#p35681

If you still have questions, post on that thread, not this one.

Thanks.