Answer: It will take 50 minutes to all the groups to play every game .
Explanation:
Hi, to solve this problem we have to analyze the information given: 
length of each game: 10 minutes 
Number of games: 5 
So, to obtain the result we have to multiply the number of games by the length of each game because there are 5 game stations. 
The games can be played simultaneously but to play them all each group has to play one game at a time. 
5 x 10 = 50 minutes 
In conclusion, It will take 50 minutes to all the groups to play every game.