Question

a district contains 64,000 inhabitants . if the population increases at the rate of 2½% per annum , find the number of inhabitants at the end of 3 years

Answer 1

Total inhabitants =64000

Decrease in first year = 64000 - (2.5 % of 64000)

                                   = 62400

Decrease in second year =62400 - (2.5 % of 62400)

                                          = 60840

Decrease in third year = 60840 - (2.5 % of 60840)

                                         = 59319

Final no. of inhabitants = 59319