In a series, every odd-numbered term follows an AP with first term and common…

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

Problem

In a series, every odd-numbered term follows an AP with first term

2

and common difference

1

, while every even-numbered term follows a GP with first term

3

and common ratio

2

. Find the sum of the first six terms of the series. (a)

27

(b)

33

(c)

28

(d)

30