The terms of an arithmetic progression are 12, 9, 6,

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

Problem

The terms of an arithmetic progression are 12, 9, 6, …\dots. What is the smallest positive integer nn such that the sum of the first nn terms is at least 30? (a) 33 (b) 44 (c) 22 (d) 55

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