Question

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

Answer 1

Answer:

20000

Step-by-step explanation:

Let the population before a year be x,then

x+(x×10/100)=22000

x+x/10=22000

10x+x=22000×10

11x=220000

x=20000

therefore the population a year before is 20000