In a certain cricket tournament 45 matches were played. Each team played once against each of the other teams. The number of team participated in the tournament is?
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total 10 teams participated
we can get by formulae
(n)(n-1)/2= total no of match played
=>n²-n=90
where n= 10 or -9 ; -9 is not possible so 10 teams participated in tounament
shanujan2012:
Pls elobrate I don't understand
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