If $a_{1},a_{2},a_{3},\ldots$ are in A.P. such that $a_{1} + a_{7} + a_{16} = 40$, then the sum of the first 15 terms of this A.P. is - Math Practice Question | divineJEE

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If $a_{1},a_{2},a_{3},\ldots$ are in A.P. such that $a_{1} + a_{7} + a_{16} = 40$, then the sum of the first 15 terms of this A.P. is

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