From 2006 to 2010,per capita real gross domestic product (GDP)in Poland grew an average of 4.71% per year.At that rate,according to the Rule of 70,in roughly how many years will the Polish economy double in size?

Question

Quizplus · Accepted Answer

The Rule of 70 states that to find the doubling time of an investment or economy growing at a constant rate, you divide 70 by the annual growth rate. For Poland's GDP growth rate of 4.71%, the doubling time is approximately 70 / 4.71 = 14.9 years.

From 2006 to 2010,per Capita Real Gross Domestic Product (GDP)in