Question

It takes 20 seconds to fill a quart jar with water from the drinking fountain. How many gallons of water would flow out in 5 hours?

Answer 1

I need help!!

Answer 2

You can use proportions to solve this problem.

20 seconds/1 quart = 60 seconds/x quarts
20x = 60
x =3 So 3 quarts can be filled in 1 minute

1 minute/3 quarts = 60 minutes/x quarts
x = 180 quarts So 180 quarts can be filled in 1 hour

Since the problem is looking for 5 hours, you need to multiply by:
(180 quarts)(5) = 900 quarts can be filled in 5 hours

Since there are 4 quarts to 1 gallon, you convert the quarts by dividing by 4:

900 quarts/4 = 225 gallons

Therefore, 225 gallons can be filled in 5 hours