What will be the difference between simple and compound interest at 10% per annum on a sum of Rs. 1000 after 4 years?	Choose the correct choice from the following answers: A) Rs. 31 B) Rs. 32.10 C) Rs. 40.40 D) Rs. 64.10 E) Rs. 74.10
S.I. = (1000 * 10 * 4)/100 = Rs. 400   C.I. = [1000 * (1 + 10/100)4 - 1000] = Rs. 464.10 Difference = (464.10 - 400) = Rs. 64.10   ANSWER:Rs. 64.10
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What will be the difference between simple and compound interest at 10% per annum on a sum of Rs. 1000 after 4 years?