Virgil
Posts:
8,833
Registered:
1/6/11


Re: how many ways to pick two teams of 10 out of a group of 20 people
Posted:
Feb 5, 2013 3:20 AM


In article <13ae8675030d408794e64490d6b7662c@googlegroups.com>, G Patel <gaya.patel@gmail.com> wrote:
> Is it 20 choose 10 or do I have to divide by 2? > Work your way up to it. How many pairs of teams of 1 each from a pool of 2 players? How many pairs of teams of 2 each from a pool of 4 players? How many pairs of teams of 3 each from a pool of 6 players? How many pairs of teams of 4 each from a pool of 8 players? ... How many pairs of teams of 10 each from a pool of 20 players? 

