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In how many ways can 10 kindergarten children eat 30 cookies, if each child must eat at least one?

 Mar 5, 2021
 #1
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Give each child one cookie.

 

Now 10 children, 20 cookies.

 

So a+b+c+d+e+f+g+h+i+j=20

 

Result is (20+10-1) choose (10-1) = 29 C 9

 

10015005

 Mar 6, 2021

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