05 Mar 2010, 12:57 My method:We need to find out:a) what is the # of comittees that only include M?b) what is the number of comittees that include M AND A?To get the answer, divide the result in b) by result in a)a) M is already in place (_M_ ___ ___ ), so there are 2 available slots and 5 remaining people to fill these slots. 5!/2!(5-2)! = 10 combinations including Mb) M and A are in place (_M_ _