# Mathematicas

posted by Mina

The 6 fourth-grade classes at Marathon Elementary School are having a kick-ball tournament. Each class must play each other one in the tournament. How many kick-ball games must be scheduled?

1. lisa

6x6=36 games

2. Reiny

There will be (6x5)/2 or 15 games

(class A cannot play against classA, as would be the case in lisa's answer.
I also divided by 2 since class B vs class C is the same game as class C vs class B etc)

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