The sum of the first five terms of a geometric progression is and the sum of the…

MATHEMATICS · Single correct · A Level · Mathematics · Sequences and series · Sequences and series

Problem

The sum of the first five terms of a geometric progression is

31

and the sum of the first ten terms is

1023

. Determine the common ratio

r

. (a)

3

(b)

\dfrac{3}{2}

(c)

2

(d)

\sqrt[4]{33}