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#### Sunday Afternoon Maths LXI

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Where is Evariste?Bending a Straw

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Source: Futility Closet

Each point on a straight line is either red or blue. Show that it's always possible to find three points of the same color in which one is the midpoint of the other two.

If you enjoyed this puzzle, check out Sunday Afternoon Maths LXI,

puzzles about sport, or a random puzzle.

puzzles about sport, or a random puzzle.