A certain sum of money invested at compound interest (compounded annually) becomes three times its original value in 4 years. In how many years will the same sum become nine times its original value at the same interest rate?
Subject: Mathematics | Topic: Arithmetic | Difficulty: MEDIUM
Options
- (A) 6 years
- (B) 9 years
- (C) 8 years
- (D) 5 years
Verified Answer
Option (C): 8 years
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