Mathematics · Compound Interest
A sum of money placed at compound interest doubles itself in 4 years. In how many years will it become four times of itself at the same rate of compound interest?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 116 years
- 28 years✓
- 313 years
- 412 years
Correct answer
8 years
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