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Ana, Bruno and Carolina played table tennis - Portugal OPM 2023 p1
Source:
5/15/2024
Ana, Bruno and Carolina played table tennis with each other. In each game, only two of the friends played, with the third one resting. Every time one of the friends won a game, they rested during the next game. Ana played
12
12
12
games, Bruno played
21
21
21
games and Carolina rested for
8
8
8
games. Who rested in the last game?
combinatorics
algebra