Question

the population of a town increases 8% annually if present population is 142560 find it a year ago

Answer 1

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

Answer 2

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