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Math Help - Combinatorics QUESTION 1-3

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    Combinatorics QUESTION 1-3

    Nine chairs in a row are to be occupied by six students and three professors. The three
    professors arrive before the six students and decide to choose their chairs so that each
    professor will be between two students. In how many ways can the professors choose their
    chairs?
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    Re: Combinatorics QUESTION 1-3

    Quote Originally Posted by maximus101 View Post
    Nine chairs in a row are to be occupied by six students and three professors. The three
    professors arrive before the six students and decide to choose their chairs so that each
    professor will be between two students. In how many ways can the professors choose their chairs?
    You have posted problems without any comment whatsoever.
    Do you expect someone to do them for you?
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