Question

Compared to last year, the population of boom town has increased by 25%. The population is now 6,600. What was the population last year?

Answer 1

Answer:

5280people

Step-by-step explanation:

Given parameters:

Percentage increase of population  = 25%

Population now = 6600

Unknown:

Population last year = ?

Solution:

Let the population last year = y;

   Then;

   Percentage of last years population plus the population of last year should give us this year's population;

         ($\frac{25}{100}$ of y) + y  = 6600  

           0.25y + y = 6600

            1.25y = 6600

                   y = $\frac{6600}{1.25}$   = 5280people

Last year, there was 5280people in the locality.