A sum of money invested at S I triple itself in 6yrs At the same rate of interest it will amount to ...........

Quantitative Aptitude (CDS) Compound Interest

A sum of money invested at S.I triple itself in 6yrs. At the same rate of interest it will amount to 9 times of itself in how many years?

24yrs

22yrs

18yrs

16yrs

Solution:
In Simple interest P become 3P, it means 2P Is interest.
2P = 6
P = 3
To make 9P, 8P will be interest = 24yrs

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