Question

The population of a small town is 12,000. If the population increases by 15% from year to year, then what will be the population of that city in two years?

1. 14,760
2. 15,870
3. 15,620
4. 16,870

Answer 1

Correct Answer - Option 2 : 15,870

Given:

Population of town = 12,000

Percentage increase in population = 15%

Concept used:

Population of the city in n years = initial population × (1 + r/100)ⁿ

Calculation:

Population of the city in two years = 12,000 × (1 + 15/100)² = 15,870

∴ The population of the city in two years is 15,870.