What will be the difference between simple and compound interest at 10% per annum on a sum of Rs. 1000 after 4 years?

A. Rs. 31
B. Rs. 32.10
C. Rs. 40.40
D. Rs. 64.10

Explanation:

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

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