If the simple interest on a certain sum of money for 3 years at 10% interest is Rs.300, find the compound interest on the same sum for the same time at the same rate of interest.

A

Rs.300

B

Rs.321

C

Rs.210

D

Rs.331

Correct Option -** D**

Explaination

P = 300*100/(3*10) = Rs.1000

A = 1000*(1+(10/100))^3 = 1331

C.I = 1331-1000 =Rs.331

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