The sum of the first four terms of a geometric progression is 80

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

Problem

The sum of the first four terms of a geometric progression is 80, while the sum of the first five terms is 242. Calculate the common ratio. (a)

\dfrac{121}{40}

(b)

2

(c)

3

(d)

4