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20 cupcakes are independently put into 5 packages. A is the proabability that one package has 5, one has 3, and the rest have 4 cupcakes. B is the probability that each packages has 4 cupcakes each. What is A/B

 Nov 11, 2021
 #1
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5×4=20 and 5+3+4+4+4=20 so both can be the answer 

 Nov 11, 2021
 #2
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I think you misunderstood the problem Guest

 Nov 11, 2021
 #3
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If the cup cakes are all identical then I think the answer is 10

 

I think you have to think of the packets being different, maybe different colours.

There is only 1 way to put four cupcakes in each one.

But there are  5!/3!  = 10 ways to put   5,3,4,4,4 cupcakes in them.

 

I am not certain of my logic but it sounds ok to me.

Melody  Nov 11, 2021

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