document.write( "Question 204374: In a round tournament every team plays every other team once.
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\n" ); document.write( "\n" ); document.write( "(a) How many games are played if there are four teams?\r
\n" ); document.write( "\n" ); document.write( "(b) How many games are played if there are five teams?\r
\n" ); document.write( "\n" ); document.write( "(c) How many games are played if there are n teams?\r
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Algebra.Com's Answer #154330 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
In a round tournament every team plays every other team once.
\n" ); document.write( "Example: For a three teams tournament 3 games would be played.
\n" ); document.write( "(a) How many games are played if there are four teams?
\n" ); document.write( "Ans: 4C2 = (4*3)/1*2) = 6
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\n" ); document.write( "(b) How many games are played if there are five teams?
\n" ); document.write( "Ans: 5C2 = (5*4)/(1*2) = 10
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\n" ); document.write( "(c) How many games are played if there are n teams
\n" ); document.write( "Ans: nC2 = (n(n-1))/2
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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