A group of 31 friends gets together to play a sport. First people must be divided into teams. Each team has to have exactly 3 players and no one can be on more than one team. How many teams can they m?

To determine how many teams can be formed from a group of 31 friends, where each team consists of exactly 3 players, you would divide the total number of friends by the number of players per team. Dividing 31 by 3 gives you 10 teams with 1 player left over. Therefore, a maximum of 10 teams can be formed.