In a chess tournament, each competitor has played exactly one game with every other competitor. Five of them lost two games each. All the others won two games apiece.

There were no draws.

 

How many competitors were there?

 

Class Set of the following Items:

• Pattern Blocks
• Tangrams
• Foam Solids
• Geoboards
• Compasses
• Fraction Circle Rings
• CM Cubes

All correct answers will be entered into a raffle for a prize. You have until the end of the month to post a submission.

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