Fraction of a Can
Fill a cylindrical can with water. A quick way to empty the can to exactly
half its volume is to pour out the water until the water line just touches the
circular bottom of the can. If you tip the can further, until the water
line crosses the center of the bottom of the can (forming a diameter of the
bottom circle), what fraction of the can's volume is now filled with water?
Source: Original.
Solution
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