Mathematics · Averages
At a certain rate of interest per annum, compounded annually, a certain sum of money amounts to two times itself in 11 years. In how many years will the sum of money amount to four times itself at the same rate of interest per annum, also compounded annually?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 133 years
- 222 years✓
- 35.5 years
- 420 years
Correct answer
22 years
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