The sum of the first terms of an arithmetic progression with first term and common…

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

Problem

The sum of the first nn terms of an arithmetic progression with first term 2525 and common difference −3-3 is 112112. Determine nn. (a) 88 (b) 1010 (c) 77 (d) 44

Related theory

Browse the problem library