Question

the population of a town increased by 10% anually if the present population is 22000 find its population year ago

Answer 1

Answer:

The population year ago = 20000

Step-by-step explanation:

It is given that,

the population of a town increased by 10% annually

and the present population is 22000

To find the population year ago

From this we get, 22000 is the 110% of last year

Let a be the last year populatio.

So 22000 is the 110% of a

(110 x a)/100 = 22000

a = (22000 x 100)/110 = 20000

Therefore, the population year ago = 20000

Answer 2

population three yrs ago= ?
= 22000= population year ago{1+r/100}^1



I hope it helps you ☺☺☺