Question

The volume of Alicia's swimming pool is 2,500

2,500 cubic feet. It has a pump that filters the water at a rate of 40

40 gallons per minute.

How can Alicia determine how long it will take the pump to filter all the water in the pool?

Answer 1

Let the volume of one gallon be x cubic feet.

40 gallons will have a volume of 40x cubic feet which the pump filter per minute.

Time taken for the pump to filter all the water in the pool $=\frac{2500cubic feet}{40x \space cubic \space feet}$

So if she has the volume of one gallon, she can determine the time taken.