12 wrestlers compete in a competition .if each wrestler wrestles one match each with each other wrestler ,what are the total numbers of matches.
2 answers
In how many ways can you choose 2 from 12 ?
NO!
choose 2 from 12 is
12!/(2!10!) or C(12,2) = 66
choose 2 from 12 is
12!/(2!10!) or C(12,2) = 66
1 answer