GMAT Practice Question Set #49 (Question 145-147)

Problem Solving Question #146: Sum of Expression for 10 Integers  
Time 0 0 : 0 0 : 0 0

For every integer k from 1 to 10, inclusive, the kth term of a certain sequence is given by
`(-1)^(k+1)(1/2^k)` . If T is the sum of the first 10 terms in the sequence then T is


Greater than 2


Between 1 and 2


Between 1/2 and 1


Between 1/4 and 1/2


Less than 1/4

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