Mathematics · Compound Interest
If a sum of money placed at compound interest doubles itself in 2.5 years, in how many years will it become 8 times the original sum at the same rate of interest?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 18 years
- 26.5 years
- 310 years
- 47.5 years✓
Correct answer
7.5 years
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