If population growth in a country is at two percent, approximately how many years will it take for that country's population to double?
A) Ten years
B) Fifteen years
C) Twenty-five years
D) Thirty-five years
E) Fifty years

Question

Quizplus · Accepted Answer

The Rule of 70 is used to estimate the doubling time of a population. By dividing 70 by the growth rate (2%), it takes approximately 35 years for the population to double.

If Population Growth in a Country Is at Two Percent