What annual growth rate will result in a country roughly doubling its GDP in 20 years?

Name: What annual growth rate will result in a country roughly doubling its GDP in 20 years?
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Question

Quizplus · Accepted Answer

The rule of 70 can be used here, which states that to find the number of years for a variable to double, divide 70 by its annual growth rate. So, to double GDP in 20 years, the annual growth rate should be approximately 3.5 percent (70 divided by 20).

What Annual Growth Rate Will Result in a Country Roughly