The so-called Rule of 70 is a formula for ﬁnding the approximate number of times that a value will
double in a period of 70 years.

Name: The so-called Rule of 70 is a formula for ﬁnding the approximate number of times that a value will double in a period of 70 years.
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The Rule of 70 is a way to estimate the number of years it will take for an investment or population to double, given a fixed annual growth rate, by dividing 70 by that growth rate.

The So-Called Rule of 70 Is a Formula for ﬁNding