1.
How many different two-person teams can be made from 6 people?
A.
15
B.
120
C.
30
D.
360
Hint
2.
A composition teacher needs to choose 10 students out of 15 to serve as rough draft reviewers. A group of 10 seniors, 3 juniors, and 2 sophomores have volunteered. How many different ways can the teacher choose 10 students?
A.
3,003
B.
133,133
C.
360,360
D.
36,036
Hint
3.
Calculate
4
C
4
A.
1
B.
24
C.
16
D.
8
Hint
4.
Calculate
6
C
2
A.
8
B.
90
C.
15
D.
60
Hint
5.
Calculate
12
C
2
A.
1
B.
48
C.
132
D.
66
Hint