number of ways to select the committee of three persons out of 10 person​

1 thought on “number of ways to select the committee of three persons out of 10 person​”

1. Answer:

   combination formula since order doesn’t matter. Then n!r!(n−r)!→10!3!(10−3)!= 120.

   The second part requires order meaning that I need to use the permutation formula n!(n−r)! → 10!(10−3)! = 720.

   Reply