John invited a group of friends for dinner. He hires 5 cabs and 5 persons can sit in each cab. Find total number of persons he invited.
A person invites a group of 10 friends to dinner and makes them sit on 2 round tables with 5 persons at each table. The number of ways in which he can arrange the guests is:
A person invites a group of 10 friends at dinner and makes them to sit on 2 round table's with 5 persons on each table . The number of ways in which he can arrange the guests is: