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A textbook search committee is considering 11 books for possible adoption. The committee has decided to select 3 of the 11 for future consideration. In how many ways can it do so?

  • math -

    Choosing 3 out of 11 is given by:
    11C3
    =11!/[(11-3)!3!]
    =11*10*9/(1*2*3)
    =165

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