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If a country's real GDP grows at 5% per year, how long will it take the real GDP to double?Group of answer choices10 years14 years20 years25 years

Question

If a country's real GDP grows at 5% per year, how long will it take the real GDP to double?Group of answer choices10 years14 years20 years25 years

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Solution

To answer this question, we can use the rule of 70. The rule of 70 is a way to estimate the number of years it takes for a certain variable to double. The formula is 70 divided by the growth rate.

In this case, the growth rate is 5%.

So, we calculate 70/5 = 14 years.

Therefore, it will take approximately 14 years for the real GDP to double if it grows at a rate of 5% per year.

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