If a certain sum becomes 3 times in 6 years at compound interest, then in how many years, it will become 81 times?

If a certain sum becomes 3 times in 6 years at compound interest, then

1.	If a certain sum becomes 3 times in 6 years at compound interest, then in how many years, it will become 81 times?
A.	81
B.	162
C.	27
D.	24
Answer» E.

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If a certain sum becomes 3 times in 6 years at compound interest, then in how many years, it will become 81 times?

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