Solution:-
We have, the football league consists N=7 teams.
In one games time, there are only n=2 teams on the football ground.
Therefore,
The games are required to play , each team with each other team is given by NCn. ............ ( C: combination)
i.e., 7C2 = 21
Result:- The games are required to play , each team with each other are 21.
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