A sum becomes 3 times in 5 years at compound interest. In how many years the same sum will become 9 times?

A sum becomes 3 times in 5 years at compound interest. In how many yea

1.	A sum becomes 3 times in 5 years at compound interest. In how many years the same sum will become 9 times?
A.	5
B.	10
C.	15
D.	20
Answer» C. 15

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A sum becomes 3 times in 5 years at compound interest. In how many years the same sum will become 9 times?

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