Question

fifteen people site around a circular table. what are odds against two particular people sitting together?​

Answer 1

Step-by-step explanation:

For circular arrangements we have formula (n-1)!

Here, as 2 people are sitting together, we have 14 boxes ( as above )

so (14-1)! = 13!

and 2 people sitting together can be arranged in 2! ways

Hence final ans. = 13! × 2!