Question

1. The population of a town increases by 10% annually. If the present population is 22000, find its population
a year ago​

Answer 1

Answer:

The population of town a year ago was 2000

Step-by-step explanation:

suppose population one year ago = x

increment per year = 20%

present population = x + 10% of x

22000 = x+ 10/100 × x

22000 = 100x + 10x / 100

22000 = 110x / 100

x = 22000 × 100 / 110

x = 20000