This year's school population in Waterloo is 135 percent of last year's school population. This year's student population is 756. How many students did the school have last year?

560 students

Step-by-step explanation:

This year's school population in Waterloo is 135 percent of last year's school population.

If the population this year is represented as P1 and the population last year is represent as P2, then, this means that:

(P1 / P2) * 100 = 135

This year's student population is 756.

This means that P1 = 756.

Hence:

(756 / P2) * 100 = 135

756 * 100 = 135 * P2

75600 = 135 * P2

=> P2 = 75600 / 135 = 560

Hence, the population of the school last year was 560 students.