in a tennis tournament in which every pair has to play with every other plair, 10 players are playing find the number of games played.

Question

in a tennis tournament in which every pair has to play with
every other plair, 10 players are playing find the number of games
played

Amit kumar · Accepted Answer

Lets say we can do selection in way such that we need to select
any 4 people out of 10 and out of these 4 we need to get max number
of pairs
thus no of ways of doing it =
10C4Ã—4C2
= 1260