Let n quantities be in A.P., d being the common difference. Let the arithmetic mean of the squares of these quantities exceed the square of the arithmetic mean of these quantities by a quantity p. Then pA. is always negativeB. equals `(n^(2)- 1)/(12) d^(2)`C. equal s`(d^(2))/(12)`D. equals `(n^(2) - 1)/(12)`

Let n quantities be in A.P., d being the common difference. Let the ar

1.	Let n quantities be in A.P., d being the common difference. Let the arithmetic mean of the squares of these quantities exceed the square of the arithmetic mean of these quantities by a quantity p. Then pA. is always negativeB. equals `(n^(2)- 1)/(12) d^(2)`C. equal s`(d^(2))/(12)`D. equals `(n^(2) - 1)/(12)`
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