A sum borrowed under compound interest doubles itself in 10 years. When will it become fourfold of itself at the same rate of interest?
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Q:
A sum borrowed under compound interest doubles itself in 10 years. When will it become fourfold of itself at the same rate of interest?
- 115 yearsfalse
- 220 yearstrue
- 324 yearsfalse
- 440 yearsfalse
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