The three expressions

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

Problem

The three expressions

3x+1

,

2x+5

and

5x+9

are written in that order. For which value of

x

do they form an arithmetic progression? (a)

-4

(b)

0

(c)

\dfrac{5}{2}

(d)

-12

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