Elizabeth has a box of shirts. one half of the shirts are small, 2/5 of the shirts are medium, and 5 shirts are large. How many shirts are in the box?
Small 1/2= .50
Medium 2/5= .40
That means large is .10
10% of the shirts = 5 shirts
5 is 10% of 50.
There are a total of 50 shirts.