A useful rule of thumb called the "Rule of 70" states that if something grows at a constant rate of Z percent per year,it doubles in size approximately every __________ years.

Question

Quizplus · Accepted Answer

According to the Rule of 70, if something grows at a constant rate of Z percent per year, it will take approximately 70/Z years for it to double in size. Therefore, the best choice is B, which is 70/Z.

A Useful Rule of Thumb Called the "Rule of 70 ×\times×

A Useful Rule of Thumb Called the "Rule of 70 $\times$