If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 50, what is the compound interest on the same sum at the rate and for the same time? Pick:
A) Rs.51.25	B) Rs.51.26	C) Rs.51.22	D) Rs.51.98	E) Rs.51.11
Sum = (50 * 100) / (2 * 5)   = Rs. 500   Amount = [500 * (1 + 5/100)2]   = Rs. 551.25   C.I. = (551.25 - 500)   = Rs. 51.25.   Rs.51.25nswer: Rs.51.25
<result>A</result>
If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 50, what is the compound interest on the same sum at the rate and for the same time?