Question

A physical therapy facility is building a new pool that is 50 feet long and 7 feet deep. They have ordered enough tile for a 120 foot long border around the edge. How wide should the pool be to ensure all the tiles are used?

Answer 1

Answer: 10 feet wide

Explanation:

If there is 50 feet long on either side, then the perimeter of the length is 100 feet. That would mean that there is 20 feet left. If there is 20 feet for 2 sides, we would divide that in half. 20 / 2 = 10.

So, for all of the tiles to be used, the pool would have to be 10 feet wide.