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Question

A couple with a children of 5 boys and 5 girls decided to have a family dinner in a restaurant. Two of the boy had a fight and insist of not sitting together. They were sitting on a round table,and the couple insist of sitting together.
a) how many possible ways that the two of the brothers are not sitting together.
b) how many possible ways can you sit the children alternating boy and girl.

 

 

 

 

 

Answer

 

 

 

 

 

 

 
 
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