A geometric progression has its 3rd term equal to 20 and 6th term equal to −160

MATHEMATICS · Single correct · CBSE · Mathematics · Sequences and Series · Sequences and Series

Problem

A geometric progression has its 3rd term equal to 20 and 6th term equal to −160. Determine the common ratio. (a)

2

(b)

-8

(c)

-2

(d)

-\dfrac12