If output is growing at 5% annually, how many years will it take for output to quadruple?

Name: If output is growing at 5% annually, how many years will it take for output to quadruple?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Using the Rule of 70, which estimates the doubling time by dividing 70 by the annual growth rate, it takes approximately 14 years to double at 5% growth. To quadruple, it would take double the doubling time, so 28 years.

If Output Is Growing at 5% Annually, How Many Years