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Mathematics, 24.11.2020 01:30 kimjooin02

Task: You and your friend were taking turns rolling a die when you thought of a game: If a one is rolled by either player, you pay your friend 50 cents, but when a different number is rolled, your friend pays you 10 cents. After 30 rolls, it turned out that you were even, and neither of you won anything. How many times was a 1 rolled?

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