The first term of a geometric progression is and the common ratio is

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

Problem

The first term of a geometric progression is

5

and the common ratio is

\dfrac{3}{2}

. What is the sum of its first four terms? (a)

\dfrac{95}{4}

(b)

\dfrac{325}{8}

(c)

29

(d)

\dfrac{325}{16}