Question

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


Options:
A .  Rs. 31
B .  Rs. 32.10
C .  Rs. 40.40
D .  Rs. 64.10
E .  None of these
Answer: Option D

S.I.  = Rs.` ((1000 xx 10 xx 4)/(100))` =  Rs. 400

C.I.    =  Rs. `[1000 xx (1 + 10/100)^4 - 1000]` =   Rs.  464.10

`:.`      Difference = Rs. (464.10 - 400) =  Rs. 64.10



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