66 games were played in a tournament where each player placed one against the rest. The number of players are

66 games were played in a tournament where each player is placed against the rest. The number of players is :

Thirty six games were played in a football tournament with each team playing once against each other. How many teams were there?

Thirty six games were played in a football tournament with each team playing once against each other. How many teams were there?

Thirty six games were played in a football tournament with each team playing once against each other. How many teams were there?

Twenty-eight games were played in a football tournament with each team playing once against each other. How many teams were there?

Twenty-eight games were played in a football tournament with each team playing once against each other. How many teams were there?

Thirty six games were played in a football tournament with each team playing once against each other. How many teams were there?

Thirty six games were played in a football tournament with each team playing once against each other. How many teams were there?

Twenty-eight games were played in a football tournament with each team playing once against each other. How many teams were there?