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Home  >>  JEEMAIN and AIPMT  >>  Mathematics  >>  Class11  >>  Sequence and Series
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Let $a_{n}\;$ be $\;n^{th}$ term of AP. If $\;\sum_{r=1}^{50}\;a_{2r}=p\;and \;\sum_{r=1}^{50}\;a_{2r-1}=q\;$ the common difference is :


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Answer : (d) $\frac{p-q}{50}$
Let d be common difference
answered Jan 21, 2014 by yamini.v

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