In a certain group of 9 members, 4 members teach only French and the rest teach only Spanish or German. If the group is to choose 3-member committee, which must have at least 1 member who teaches French, how many different committee can be chosen ? Choose the correct choice
A) 40 B) 50 C) 74 D) 80 E) 100
74ase 1   1french 2either German or Spanish: 4741 * 5742 = 40   74ase 2   2french 1either German or Spanish: 4742 * 5741 = 30   74ase 3   3french 4743 = 4   Answer is 74 = 74
<result>C</result>
In a certain group of 9 members, 4 members teach only French and the rest teach only Spanish or German. If the group is to choose 3-member committee, which must have at least 1 member who teaches French, how many different committee can be chosen ?