Question

the population of a town increased 5% annually if it is present population is to 299460 what was it a year ago

Answer 1

let previous population is p

therefore previous population was

285200

Answer 2

let the previous population be p.

So, the number of population increase= 5/100 × p = p/20.

present population = p + p/20

299460 = 21p/20

299460×20/21 = x= 285200

therefore the previous population was 285200