Find the C.I. on a sum of Rs.1600 for 9 months at 20% per annum, interest being compounded quarterly?\nOptions:\n(A) 3377\n(B) 2889\n(C) 2522\n(D) 2678\n(E) 7111 OK. Let's think. Some random thoughts first:
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A = 1600(21/20)3 = 2522 The answer: (C).
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