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MathNet 2026 — Part 10 Question 49

Math Olympiad Vault · MathNet 2026 — Part 10

Question 49

There are infinitely many bowls arranged on the number line, one at each integer. Initially each bowl has one fruit in it. In a move, one may take any fruit and move it to an adjacent bowl (bowls may hold more than one fruit, or no fruits at all).
Is it possible that after 999 moves, every bowl still has exactly one fruit remaining?