'Rule of 72': Your money could double in 6 years but only if you know this 3-second rule

The formula is easy to use. Divide 72 by your annual rate of return to find out how many years it will take for your money to ...
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Investment: When will your invested money double, triple, or quadruple? This formula will tell you in a jiffy..

There are numerous investment options these days. Most people invest based on interest rates to maximize profits. However, knowing how many years it will take for your money to double, triple, or ...