GMAT Practice Question Set #29 (Question 85-87)

Problem Solving Question #87: Infinite Sequence  
Time 0 0 : 0 0 : 0 0

In the infinite sequence a1, a2, a3, ..., an, ..., each term after the first is equal to twice the previous term. If a5 - a2, = 12, what is the value of a1?

(A)

`4`

(B)

`frac {24}{ 7}`

(C)

`2`

(D)

`12/7`

(E)

`6/7`

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.