In an A.P. whose first term and common difference is non zero, the ratio R of the sum of the first n terms to the sum of n terms suceding them does not depend on n. Then (A) ratio of common difference Of A.P to its first term is 2. 1 (B) R has value equal to 1/3 (C) R has value equal to 1/2 D) ratio of common difference of A.P. to its first term is 3.
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