Question

The population of a town increase 8% annually.If it's present population is 142560 ,what was it a year ago?

Answer 1

132000 a year ago population

Answer 2

let the last year population = x
present population =142560
increase % =g = 8%

x(100+g)/100 = present population

x= (142560*100)/(100+g)
x= 14256000/108
x=132000
∴
last year population = x= 132000