The 5th term of an AP is 18 and the 9th term is 34

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

Problem

The 5th term of an AP is 18 and the 9th term is 34. Which of the following could be the first four terms of this AP? (a)

6,\;9,\;12,\;15

(b)

2,\;6,\;10,\;14

(c)

-2,\;2,\;6,\;10

(d)

6,\;10,\;14,\;18