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A tower has a spiral staircase running through it. Two painters have come to paint the steps. Painter A will paint the inner half of the steps, starting at the bottom and working his way up. Painter B will paint the outer half of the steps, starting at the top and working down. They both paint at the same speed. If both painters start painting at the same time, who will finish work and get to go home first?
Think it through again.
Are you sure there isn't something you missed?
B will be able to go home first.
A will finish painting first, but he'll be at the top of the tower. Since the paint on the steps will still be wet, he won't be able to go home for some time!
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