The sum of the first terms of a geometric progression equals times its first term

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

Problem

The sum of the first

n

terms of a geometric progression equals

n

times its first term. What is the common ratio

r

of the progression? (a)

0

(b)

-1

(c)

1

(d)

\dfrac{n-1}{n}