In an AP, the 3rd term is 12 and the 18th term is 87. What is the sum of the first 20…

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

Problem

In an AP, the 3rd term is 12 and the 18th term is 87. What is the sum of the first 20 terms of this AP? (a)

950

(b)

1040

(c)

990

(d)

890