Question

How can a 5−gallon container and an 11−gallon container be used to measure out 7 gallons of water?

Answer 1

You can measure out 7 gallons of water using a 5-gallon container and an 11-gallon container by following these steps:

1. Fill the 11-gallon container completely with water.
2. Pour the water from the 11-gallon container into the 5-gallon container. This will leave you with 5 gallons of water in the 5-gallon container and 6 gallons of water remaining in the 11-gallon container.
3. Now, empty the 5-gallon container.
4. Carefully pour the remaining 6 gallons of water from the 11-gallon container into the empty 5-gallon container. This will fill the 5-gallon container to its capacity, leaving you with exactly 1 gallon of water remaining in the 11-gallon container.

Now, you have 7 gallons of water in total, with 1 gallon in the 11-gallon container and 5 gallons in the 5-gallon container. This combination allows you to measure out 7 gallons of water using a 5-gallon and an 11-gallon container.