In how many ways can 9 people { A, B, C, D, E, F, G, H,...

In how many ways can 9 people { A, B, C, D, E, F, G, H, I } be seated at a round table if

(A) A and B must not sit next to each other;

(B) C, D, and E must sit together?

(C) A and B must sit together, but neither can be seated next to C, D, or E.

Consider each of these separately. For (C) you may NOT simply list all possibilities, but must use the basic principles we have developed in lecture (you may check your work with a list if you wish).

Expert Solution

orchestra answered 2 years ago

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