## Question

###### 3 girls A B C and 9 boys are to be lined up in a row .In how many ways can this be done if B says she wants to be between A and C.Note that if the boys are shown with numbers 1,2,3, .......9,then the following orderings are acceptable: A, 1,2,3,.........,9, B,C or C,1,......,8,9,A, while B, A C ,1,.......,9 is not acceptable.

3 girls A B C and 9 boys are to be lined up in a row .In how many ways can this be done if B says she wants to be between A and C.Note that if the boys are shown with numbers 1,2,3, .......9,then the following orderings are acceptable: A, 1,2,3,.........,9, B,C or C,1,......,8,9,A, while B, A C ,1,.......,9 is not acceptable.

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