If the growth rate of real GDP rises from 3% to 4% per year, then the number of years required to double real GDP will decrease from

A) 23.3 years to 17.5 years.
B) 28.0 years to 21.0 years.
C) 11.2 years to 10.8 years.
D) 23.3 years to 20.6 years.


Answer: A

Economics

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