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The Golf Balls
There is a large pit behind my house.
The first minute (at 12 noon), 1 person put in 1 golf ball.
The second minute, 2 people put in one ball a piece.
A minute later, 4 people put in 1 ball a piece.
This pattern continued until the pit was completely full at 6 pm.
At what time was the bin half empty?
