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Home  >>  JEEMAIN and AIPMT  >>  Mathematics  >>  Class11  >>  Sequence and Series
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If $(m+n)^{th}$, $(n+1)^{th}$, $(r+1)^{th}$ term of an AP are in GP and $m, n, r$ are in HP, then ratio of first term of AP to common difference is


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Answer : (d) $\;\large\frac{-n}{2}$
Explanation : $a_{m+1}\;,a_{n+1}\;a_{r+1}\;$ are in GP
m , n , r are in HP
So ,
answered Jan 24, 2014 by yamini.v

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