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Math Help - Different combinations.

  1. #1
    Junior Member
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    Different combinations.

    How would I do...
    A new computer graphics company employs 10 programmers. The company decides to expand into digital animation and needs to transfer 3 of the programmers into the new department. How many different combinations of 3 programmers can be chosen to transfer to the new department?
    I thought I should just do 3x10=30 but the answer is 120.
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  2. #2
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    nCr = 10C3 = 10!/3!(10 - 3)! = 120
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  3. #3
    Junior Member
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    Thanks.
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