Twenty calculus students are comparing grades on their first two quizzes of the year. The class...

Twenty calculus students are comparing grades on their first two quizzes of the year. The class discovers that every pair of students received the same grade on at least one of the two quizzes. Prove that the entire class received the same grade on at least one of the two quizzes.

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Colby Messinger answered 10 months ago

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