

1. 
How many ways can 3 CDs be selected from a stack of 7 different CDs? 


A. 
35 
B. 
6 


C. 
5040 
D. 
245 


Hint 


2. 
AllStar Pizza offers a large pizza with any three toppings for $9.95. If you can choose from 13 different toppings, how many different pizzas are possible? 


A. 
715 
B. 
1287 


C. 
286 
D. 
78 


Hint 


3. 
A group of 10 students is to be divided into 2 groups of 5. How many ways is this possible? 


A. 
252 
B. 
30,240 


C. 
120 
D. 
10 


Hint 


4. 
You have an assignment for an art class to paint a painting using only four colors. Visiting an art store, you find 20 colors from which to choose. How many different combinations of colors are there? 


A. 
74 
B. 
116,280 


C. 
24 
D. 
4,845 


Hint 


5. 
Which situation is a permutation? 


A. 
The number of games it would take to start 5 different basketball players from a team of 10. 


B. 
The number of ways you can choose 3 hot dog toppings from a total of 5. 


C. 
The number of ways 8 students can finish first, second, or third place at the Math Olympiad. 


D. 
The number of ways each person can shake hands with the other 11 people in the room. 


Hint 


