Q4 of 89 Page 14

Three years ago, the population of a town was 50000. If the annual increase during three successive years be at the rate of 4%, 5% and 3% respectively, find the present population.

Given,


Population of town 3 years ago was = 50000


Annual increasing in 3 years = 4% ,5%, 3% respectively


Let present population = X


So,


=


= X


= 56238


Hence,


Present population of town = 56238


More from this chapter

All 89 →
2

The population of a city is 125000. If the annual birth rate and death rate are 5.5% and 3.5% respectively, calculate the population of city after 3 years.

 3

The present population of a town is 25000. It grows at 4%, 5% and 8% during first year, second year and third year respectively. Find its population after 3 years.

 5

There is a continuous growth in population of a village at the rate of 5% per annum. If its present population is 9261, what it was 3 years ago?

 6

In a factory the production of scooters rose to 46305 from 40000 in 3 years. Find the annual rate of growth of the production of scooters.