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 at the same rate and for the same time? Choose the correct choice from the following answers:
A) Rs. 52	B) Rs. 51.25	C) Rs. 54.25	D) Rs. 60	E) Rs. 70
Simple interest for 2 years = Rs.50 ie. For 1 years Rs. 25. . In the first year the S.I and C.I are   same ie.Rs. 25. So in the 2nd year in C.I calculated for 1 years interest also. So in second years for   Rs.25 interest is  25*5/100= 
<gadget id="calculator"> 25*5/100</gadget>
<output>5/4 = around 1.25</output>
1.25 . So total C.P= 51.25.   ANSWER:Rs. 51.25
<result>B</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 at the same rate and for the same time?