[" Nine people sit around a round table.The number of ways of selecting four of them such that "],[" they are not from adjacent seats,is "]

14 persons are seated at a round table. Find the number of ways of selecting two persons out of them who are not seated adjacent to each other.

12persons are seated at a round table. Number of ways of selecting 2persons not adjacent to each other is

10 persons are seated at round table then the number of ways of selecting 3 persons out of them if no two persons are adjacent to each other is

15 persons are sitting around circular table. The number of ways of selectring three persons at a time from them, such that the selected three did not sit together at one place is

If 30 persons are sitting around a circle. In how many ways can 2 person out of them be selected so that they are not adjacent.

The number of ways can 8 students sit round the table are

In how many ways can 8 people sit around a table?

There are n numbered seats around a round table. Total number of ways in which n_(1)(n_(1) lt n) persons can sit around the round table, is equal to