Question

78. in a town of 200000 citizens,of the population increases at the rate of 4%per annum,then what will be the population of the town in 2 years from now?

Answer 1

Total population=200000(1+4/100)™2

=269120

Answer 2

Given :

in a town of 200000 citizens,of the population increases at the rate of 4%per annum,

To find :

what will be the population of the town in 2 years from now?

Solution:

Current population of town = 200000

Rate of increase = 4%

We are supposed to find the population of the town in 2 years from now.

Formula :$N(t)=N_0(1+r)^t$

N(t)=Population after t years

$N_0$=Initial population

r = rate of interest

t = time

Substitute the values in the formula :

So, $N(t)=200000(1+0.04)^2\\N(t)=216320$

Hence the population of the town in 2 years from now will be 216320