By using the rule of 72, if you want to find how many years it will take for a 15% investment to double, all you need to do is divide 72 by 15.

Question

Quizplus · Accepted Answer

The rule of 72 is a simple formula to estimate the number of years required to double the invested money at a given annual rate of return. By dividing 72 by the annual rate of return (in this case, 15%), you get an approximate number of years (4.8 years) it will take for the investment to double.

By Using the Rule of 72, If You Want to Find