A sum of money, deposited at some rate per cent. per annum of compound – McqOptions

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1.	A sum of money, deposited at some rate per cent. per annum of compound interest, doubles itself in 4 years. In how many years will it become 16 times of itself at the same rate ?
A.	16
B.	12
C.	10
D.	8
Answer» B. 12

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