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probability

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How many different ways can 5 people be seated on a bench?

  • probability -

    Assuming there are 5 places on the bench, and you place the people one seat at a time.
    Number of people available for first seat = 5
    Number of people available for second seat = 4
    ....
    Number of people available for the last seat = 1
    Total number of arrangements = 5! = 5.4.3.2.1

  • probability -

    120

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