A sum of money placed at compound interest doubles itself in 5 years. – McqOptions

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1.	A sum of money placed at compound interest doubles itself in 5 years. In how many years, it would amount to eight times of itself at the same rate of interest ?
A.	10 years
B.	15 years
C.	7 years
D.	20 years
Answer» C. 7 years

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