Question

The population of a town is 132,00. The population increases 4% a year. What will be the population in 8 years?

Answer 1

9514 1404 393

Answer:

180,651

Explanation:

Each year, the population is multiplied by the factor 1 + 4% = 1.04. After 8 years, it will have been multiplied by that factor 8 times. We indicate repeated multiplication like that using an exponent.

population in 8 years = 132,000 × 1.04^8 ≈ 180,651