Question

In 2016, Sub-Saharan Africa had a doubling time of 23.3 years.

Answer 1

The correct answer is Option B: 3%.

In 2016, Sub-Saharan Africa, doubling time is 23.3 years, thus Growth rate is 3%.

What is doubling time?

• The doubling time is the time taken by a population to double in its size.
• This concept is applied to population growth, inflation, resource extraction, consumption of goods, the volume of malignant tumors, and many other things that tend to grow over time.
• There is an important relationship between the percent growth rate and its doubling time known as “the rule of 70”: to estimate the doubling time for a steadily growing quantity, simply divide the number 70 by the percentage growth rate.
• Therefore, Growth rate is 70 divided by doubling time (70/ doubling time).
• Here, Doubling time= 23.3 years.
• Growth rate= 70/23.3= 3%

Learn more about population growth rate here:

brainly.com/question/26446097

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