If the population of a city grows 25% in 3 years, what is the yearly growth rate?

Question:

If the population of a city grows 25% in 3 years, what is the yearly growth rate?

Population Growth Rate:

In mathematics, populations can be modeled as growing at various rates. This applies to populations of cities, countries, or other sizes of community.

Answer and Explanation:

8%. The population grows at 8% per year, resulting in the population x (1.08)^3 = 1.25 times as many people, or 25% growth, in three years. A higher annual growth rate would yield too high an amount over three years and vice versa for smaller growth rates.


Learn more about this topic:

Population Growth Rate: Definition, Formula & Examples

from Alberta Education Diploma - Biology 30: Exam Prep & Study Guide

Chapter 19 / Lesson 4
55K

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