SOLUTION: Sally's mom has given her permission to pick out three books from a bargain book bin. The bin contains 27 different books. How many choices of three books does Sally have?
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Question 468267: Sally's mom has given her permission to pick out three books from a bargain book bin. The bin contains 27 different books. How many choices of three books does Sally have?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Ans:
27C3
= 27!/[(27-3)!*3!]
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= 27!/[24!*3!]
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= (27*26*25)/(1*2*3)
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= 2925
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Cheers,
Stan H.
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