Question

15% of the toddlers in a preschool class drink water with their lunch. How many toddlers are in the class if 3 toddlers drink water with their lunch? (a) Draw a model for the situation (if you prefer to use a 100-grid model or ratio table model, that’s fine too!) and label the “part,” “whole,” and “percent.”

Answer 1

Answer: There are 20 toddlers in the class.

To solve this problem, you can use the percent proportion. I set it up below and then solved it.

part/whole = percent/100

3/x = 15/100

Cross multiply and divide to solve.

15x = 300
x = 20

There are 20 toddlers in the class.