Which of the following triplets of numbers are in arithmetic progression?

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

Problem

Which of the following triplets of numbers are in arithmetic progression? (a)

3,\,6,\,12

(b)

4,\,8,\,12

(c)

7,\,11,\,14

(d)

4,\,7,\,11

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