Question

Susie is painting a wall that is 12 feet tall and 9 feet wide. If each can of paint has enough paint to cover 8 square feet, how many cans of paint will Susie need to cover the whole wall?

Answer 1

The total area of the wall that needs to be covered with paint is:

12 feet × 9 feet = 108 square feet

If each can of paint covers 8 square feet, then the number of cans of paint required to cover the whole wall is:

108 square feet ÷ 8 square feet/can = 13.5 cans

Since Susie cannot buy half of a can of paint, she will need to buy 14 cans of paint to cover the whole wall.