Asked by robin
how many ways can a 3 person committee be formed from 12 people
Answers
Answered by
Reiny
C(12,3)
= 12!/(3!9!)
= 220
Added attraction:
Google Pascal's triangle
look at the row: 1 12 66 220 495 ....
here is a good one..
http://ptri1.tripod.com/
= 12!/(3!9!)
= 220
Added attraction:
Google Pascal's triangle
look at the row: 1 12 66 220 495 ....
here is a good one..
http://ptri1.tripod.com/
Answered by
Charles
Two committees, one with six and one with seven people, with no one person serving on both committees at the same time. In how many ways can this be done.