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    keldix's Avatar
    keldix Posts: 1, Reputation: 1
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    #1

    Jun 17, 2009, 01:03 PM
    Permutation or derivation
    How many different selections of 3 cards can be made from 12 face cards? Combination or permutation and why?
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #2

    Jun 17, 2009, 01:17 PM

    Combinations of 12 things selected 3 at a time



    The order of the cards is irrelevant. If you're dealt "King-Queen-Jack", you can rearrange it without changing your hand to "Jack-King-Queen". If the order were important, the 3! In the denominator would be removed.
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