The Wikipedia Watchword of the Week--11/1/2007
The Wikipedia Watchword of the Week is
Rule of 72
Rule of 72
For instance, if you were to invest $100 with compounding interest at a rate of 9% per annum, the "rule of 72" gives 72/9 = 8 years required for the investment to be worth $200; an exact calculation gives 8.0432 years.
Labels: finance, math, wikipedia watchword








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