If the population of a city increases by 5 % annually, what will be the population of the city in 2 years time if its current population is 78000?
81900
85995
85800
90000
Explanation:
The % change in population of city in two years` time is 1.05 $\times$ 1.05 = 1.1025 = 10.25%.
Therefore, after 2 years the population of the city will be 1.1025 $\times$ 78000 = 85995.