A sum of money placed at compound interest doubles itself in 4 years. In how many years will it amount to 8 times?

A sum of money placed at compound interest doubles itself in 4 years.

1.	A sum of money placed at compound interest doubles itself in 4 years. In how many years will it amount to 8 times?
A.	9 years
B.	8 years
C.	27 years
D.	12 years
Answer» E.

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A sum of money placed at compound interest doubles itself in 4 years. In how many years will it amount to 8 times?

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