Question

If the population of a town grew 15% up to 76,894, what was the population last year?

Answer 1

The last year population was 66864.

Explanation:

It is given that the population of a town grew 15% up to 76,894.

Let the last year population be x.

The population increased by 15% up to 76894.

`x+(15)/(100)x=76894`

`(100x+15x)/(100)=76894`

`(115x)/(100)=76894`

`115x=7689400`

`x=66864.3478`

`x\approx 66864`

Therefore, the last year population was 66864.