A 3-gallon cylindrical water container has a height of 1.5 feet and a radius of 3.5 inches. Nate fills up a 2-gallon jug from the container before going on a hike. If the container was full before Nate filled the jug, what is the height of the water in the container after Nate filled the jug?

The container starts with 3 gallons and Nate removes 2, leaving 1 gallon. In a cylinder, the water height is proportional to the volume, so 1 gallon is one-third of the full 3-gallon capacity. One-third of the full height of 1.5 feet is 0.5 feet, which equals 6 inches; the correct choice is 6 inches.

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