(7) It takes 1 & 1/4 minutes to fill a 3-gallon bucket of water with a hose. At this rate, how long does it take to fill a 50-gallon tub? *

It takes 20.833 minutes to fill a 50 gallon tub

Solution:

Given that,

It takes 1 & 1/4 minutes to fill a 3-gallon bucket of water with a hose

Let "x" be the time taken to fill a 50 gallon tub

Therefore, from given,

1.25 minutes = 3 gallon

x minutes = 50 gallon

This forms a proportion and we can solve the sum by cross multiplying

Thus it takes 20.833 minutes to fill a 50 gallon tub