Question

the population of a town increase by 5% during the first year and by 7% during the second year.at the end of second year the population was 40446.what was the population at the beginning?

Answer 1

let initial population be x
in 1st yr
popultion is (105/100)x

in 2nd yr
population is (107/100)×(105/100)x
which is 40446
hence by solving we get
x= 36000