Question

Joan can paint 2 rooms of the same
size in 5 hours. If she paints for
7 1/2 hours, how many rooms of the
same size can she paint?

Answer 1

Answer:

3 rooms

Step-by-step explanation:

2x = 5

x = 5/2

5/2 = 7.5/x

5x = 15

x = 3