Tuesday, November 17, 2009

Math question?

Five different varieties of flowers are growing in a garden: carnations, roses, mums, marigolds, and lilies. Peter and Juanita are responsible for picking flowers and arranging them in vases to sale. They use three different types flowers in each vase. For example, one vase might contain roses, carnations, and lilies. How many different combinations can be made from the five varieties of flowers?

Math question?
5x4x3 / 3x2x1 = 60/6 = 10 different combinations
Reply:10
Reply:assuming order doesn't matter, use nCr, combinations. its 10
Reply:5 x 4 x 3 / (3 x 2 x 1) = 60/6 = 10.





There are 10 different combinations.
Reply:5 choose 3 combinations





number of combi = 5!/3!


(5*4*3*2*1) / 3*2*1 = 5*4 =20
Reply:the answer would be 10!


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