A town's population grows at the rate of $4 \%$ per year. If this growth rate remains constant, how long will it take the population to double?
A) $\quad 17.3$ years
B) $\quad 2.8$ years
C) $\quad 7.5$ years
D) $\quad 1.4$ years
E) $\quad 0.6$ years

Question

Quizplus · Accepted Answer

To find the time it takes for a quantity to double at a constant growth rate, you can use the rule of 70, which is an approximation method. Divide 70 by the annual growth rate percentage. In this case, $70 \div 4 = 17.5$ years. The closest answer to this calculation is 17.3 years.

A Town's Population Grows at the Rate Of 4%4 \%4% Per Year If This Growth Rate Remains Constant, How Long Will

A Town's Population Grows at the Rate Of $4 \%$ Per Year If This Growth Rate Remains Constant, How Long Will