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    Jessy314's Avatar
    Jessy314 Posts: 1, Reputation: 1
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    #1

    Apr 22, 2007, 08:55 AM
    Farmer McDonald
    Farmer McDonald has 6 pigs to feed, but room at the feeding trough for only 2 at a time. How many combinations of 2 pigs at the trough can be made from 6 pids?
    bcarlstroem's Avatar
    bcarlstroem Posts: 4, Reputation: 1
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    #2

    Apr 22, 2007, 10:47 AM
    Combination of 6 things taken two at a time (6C2) or 6!/4!2! = 15
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