Week 22 CMT Style Problem - 6th Grade

The Ping Pong Tournament

Joe is having a round robin ping pong tournament. In a round robin tournament every player gets to play every other player.

1. If there are 10 players in the tournament how many matches will there be? Show how you worked out your answer.
   
   
   
   
2. If there are 4 ping pong tables and each match takes about a 1/2 hour, how long will the tournament go on?
   
   
   
   
3. If two more players joined the tournament how many matches would there be? Show your work.