For a geometric progression with common ratio

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

Problem

r \neq 1

, the sum of the first three terms equals three times the first term. What is the value of

r

? (a)

-\dfrac{3}{2}

(b)

-2

(c)

\dfrac{2}{3}

(d)

2