Mathematics · 2013
JEE Main · 23 April 2013, Shift 1 · Q79
If a_1, a_2, a_3, …., a_n^′, …. are in A.P. such that a_4- a_7+ a_10= m, then the sum of first 13 terms of this A.P., is:
If $\displaystyle \mathrm{a}_1, \mathrm{a}_2, \mathrm{a}_3, \ldots ., \mathrm{a}_{\mathrm{n}^{\prime}}, \ldots$. are in A.P. such that $\displaystyle \mathrm{a}_4-\mathrm{a}_7+\mathrm{a}_{10}=\mathrm{m}$, then the sum of first $\displaystyle 13$ terms of this A.P., is :
Official answer
(3)
$\displaystyle 13$ m
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JEE Main 2013 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.