Mathematics · Compound Interest
A sum of money placed at compound interest (compounding annually) doubles itself in 10 years. Find the time in which it will become 4 times itself.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 115 years
- 210 years
- 314 years
- 420 years✓
Correct answer
20 years
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