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

(A)

Greater than 2

(B)

Between 1 and 2

(C)

Between 1/2 and 1

(D)

Between 1/4 and 1/2

(E)

Less than 1/4

GMATTM is a registered trademark of the Graduate Management Admission CouncilTM. The Graduate Management Admission CouncilTM does not endorse, nor is it affiliated in any way with the owner or any content of this web site.