Home » Aptitude » Compound Interest If a sum on compound interest becomes three times in 4 years, then with the same interest rate, the sum will become 81 times in: A. 12 years B. 18 years C. 16 years D. 14 years Answer Workspace Report Discuss Answer with explanation Answer: Option C Explanation Let the sum be P The sum P becomes 3P in 4 years on compound interest Workspace

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