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Home  >>  JEEMAIN and AIPMT  >>  Mathematics  >>  Class11  >>  Sequence and Series
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If $a , b , c$ are three numbers in GP . and $\;a+x\;,b+x\;,c+x\;$ are in HP then $x$ equals


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Answer : (b) b
Explanation : $\large\frac{2}{b+x}=\large\frac{1}{a+x}+\large\frac{1}{c+x}$
Explanation : $\large\frac{2}{b+x}=\large\frac{a+c+2x}{(a+x)(c+x)}$
answered Jan 22, 2014 by yamini.v

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