Mathematics · Compound Interest
If a certain sum of money doubles itself in 6 years at compound interest under annual compounding, then in how many years will it become eight times of itself at the same rate of interest?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 136 years
- 224 years
- 318 years✓
- 412 years
Correct answer
18 years
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