The population of a town is Rs. 3,00,000. If the birth rate is 5% and the death 3%, what will be the population of that town after 2 years?

Question

Question

This question was previously asked in

OSSSC RI/ ARI/ Amin (Mathematics) 2015 Official Paper-II (Held On: 7th Feb 2016)

Answer 1

Given:

* Population of the town = 3,00,000

* Birth rate = 5%

* Death rate = 3%

Concept:

The net growth rate of the population is calculated by subtracting the death rate from the birth rate.

The net growth rate = 5% - 3% = 2%

The population of the town after 2 years will be calculated by multiplying the current population by (1 + net growth rate)^2.

Solution:

(300000 × (1 + 2/100))^2 = 312120

Therefore, the population of the town after 2 years will be 312120.