KöMaL 2024 B5415
Each of the three kids, Beni, Lili and Domi completes three laps on the athletics track. The referee keeps track of the names of each kid completing a lap, and thus gets a list of nine names. Find the number of different lists the referee can get supposing that no two kids complete a lap at the same time and the speed of each kid remains constant for all three laps.
Official text KöMaL. Quoted with source.
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