Arithmeticmedium · Past Paper
A sum of money at compound interest amounts to thrice itself in 3 years. In how many years will it be 9 times itself?
A6 years
B9 years
C12 years
D27 years
✓ Correct Answer: A — 6 years
If it becomes 3x in 3 years, it becomes (3^2)x in 3*2 = 6 years.
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