math

[know]

The English Premier League consists of 20 football clubs. If every club plays with
every other club in the league two games a season. How much in total
the match is played in one season:
a) 800 b) 760 c) 380 d) 190 ?
Can anyone explain this?

 

[Deleted member 4993]

The English Premier League consists of 20 football clubs. If every club plays with every other club in the league two games a season. How much in total
the match is played in one season:
a) 800.........b) 760........... c) 380.......... d) 190 ?
Can anyone explain this?

How many ways can you choose two teams (to play against each other) from a pool of 20 teams?

That will be the number of games required (to play against each other) for one game against each other.

Please show us what you have tried and exactly where you are stuck.​

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[HallsofIvy]

There are 20 teams and each must play each of the other 19 teams twice so that, on first thought, would be 2(19)(20). But each game involves two teams!