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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?

 Nov 16, 2022
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F1,   F2,  F3      c1, c2, c3, c4, c5, c6

 

How many ways can   the flavours 1,1,2,2,3,3    be soted in a row

 

6!/(2!2!2!) = 6!/ (2*4) = 3*5*6 = 90

 Nov 16, 2022

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