Please try the method that bobpursley showed you.
https://www.jiskha.com/display.cgi?id=1502046439
A company's board of directors wants to form a committee of
3
of its members. There are
4
members to choose from. How many different committees of
3
members could possibly be formed?
2 answers
What is C(4,3) or 4!/(3!1!) ??
1 answer