[Solved] An amount becomes 7 times in 15 years. In how many years will the same amount become 10 times? The rate of interest remains the same for both cases.

Q.	An amount becomes 7 times in 15 years. In how many years will the same amount become 10 times? The rate of interest remains the same for both cases.
A.	20 years
B.	18.75 years
C.	22.50 years
D.	21.50 years
Answer» C. 22.50 years

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