An arithmetic progression has first term 3 and common difference 2.5

MATHEMATICS · Single correct · CBSE · Mathematics · Arithmetic Progressions · Arithmetic Progressions

Problem

An arithmetic progression has first term 3 and common difference 2.5. If its last term is 53, how many terms are in the progression? (a)

26

(b)

21

(c)

20

(d)

22