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Six children are each offered a single scoop of any of 3 flavors of ice cream from the Combinatorial Creamery. In how many ways can each child choose a flavor for their scoop of ice cream so that each flavor of ice cream is selected by at least two children?

 Feb 19, 2023
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Lets pretend that the 3 flavors are A, B, and C

how many ways can 2 children pick A? 6c2 = 15

How many ways can the leftover 2 of 4 children pick B? 4c2 = 6

How many ways can the last 2 pick B? 2c2 = 1

multiply that together you get 90

 Feb 20, 2023

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