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The sum of 'n' terms of an A.P is 715.If...

The sum of 'n' terms of an A.P is 715.If first term is incrased by 1, second term is increased by 3, third term is increased by 5 and so on `k^(th)` term is increased by `k^(th)` odd integer then sum of 'n' tems is 836 then value of `(n/6) is

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