Suppose 4 persons A,B,C and D sit around a round table with 8 seats. Rotation by 8,16,24,... seats defines same arrangement and other rotations gives different arrangements.
If seats are identical, there are 7*6*5 arrangements as clarified here. After sturdying such questions,the following doubt came to my mind.
Suppose persons and seats are identical. If so, what is the required number of ways that these four people can be seated at the round table.?
How to approach such problem?
I guess this may not be simple as my previous question cited. I think, if persons and sets are identical, different arrangements may get identified only based on the empty seats between persons. How to approach this problem?