SOLUTION: There are 64 players in a head-to-head tournament. 12 of these players are friends with each other. What are the odds none of these friends will play against each other in the fi

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Question 662279: There are 64 players in a head-to-head tournament.
12 of these players are friends with each other.
What are the odds none of these friends will play against each other in the first round of games?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
There are 64 players in a head-to-head tournament.
12 of these players are friends with each other.
P(no friends will play each other) = 12C1%2A52C1%2F%2864C2%29+=+12%2A52%2F%2832%2A63%29=+13%2F42
odds none of these friends will play against each other is 13:29