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

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

Seven persons are to be seated in a row.The probability that two particular persons sit next to each other is (A) (1)/(3) (B) (1)/(6)(C)(2)/(7) (D) (1)/(2)

If 15 people sit around a round table then the unfavourable chance ratio of two particular persons sitting together is :

Suppose n ( ge 3) persons are arranged in a row. The probability that two particular persons are not together is

10 persons sit around a circular table with 10 numbered chairs.The probability that the two particular persons A andB are always together is

In a party 23 persons take their seats at a round table. The odds against two particular persons sitting together are :

Twenty persons among whom A and B, sit at random around a round table,then the probability that there are any 6 persons between A and B is