The population of a village decreases at the rate of 20% per annum. If its population 2 years ago was 10000, what is its present population?
If Population fo a Town be P and Suppose decreases at the rate R% per annum , then
Population before n year = P(1-R/100)^n
so Population before 2 year= 10,000(1-20/100)^2
Back To Top