If `n` persons are seated on a round table, what is the probability that two named individuals will be neighbours?

12 persons are seated around a round table. What is the probability that two particular persons sit together?

There are 10 persons who are to seated around a circular table . Find the probability that two particular will always sit together .

n persons are seated on n chairs at a round table. Find the probability that two specified persons are sitting next to each other.

If seven persons are to be seated in a row, then the probability that two particular persons are seated next to each other is

In how many ways can 6 persons be seated at a round table?

In how many ways can 5 persons be seated at a round table?