Let ${a_1},{a_2},.......,{a_{30}}$ be an A.P., $S = \sum\limits_{i = 1}^{30} {{a_i}} $ and $T = \sum\limits_{i = 1}^{15} {{a_{\left( {2i - 1} \right)}}} $. If $a_5$ = 27 and S - 2T = 75, then $a_{10}$ is equal to :

Question

Let ${a_1},{a_2},.......,{a_{30}}$ be an A.P.,

$S = \sum\limits_{i = 1}^{30} {{a_i}} $ and $T = \sum\limits_{i = 1}^{15} {{a_{\left( {2i - 1} \right)}}} $.

If $a_5$ = 27 and S - 2T = 75, then $a_{10}$ is equal to :

Solution

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