

1. 
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. 
78 


C. 
286 
D. 
1287 


Hint 


2. 
If you have 10 CDs, and you want to take three of them with you on a road trip, how many different possibilities are there for which three you bring? 


A. 
3 
B. 
10 


C. 
120 
D. 
604,800 


Hint 


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


A. 
30,240 
B. 
120 


C. 
10 
D. 
252 


Hint 


4. 
Which situation is a combination? 


A. 
The number of ways 50 people can line up to enter a concert hall. 


B. 
The number of ways 3 books can be displayed in a store window. 


C. 
The number of ways a committee can choose a president, vicepresident, and treasurer. 


D. 
The number of ways a coach can choose 3 cocaptains for a soccer team. 


Hint 


5. 
Ten students are playing in a chess tournament. If each student plays every other student once, how many total games are played? 


A. 
30 
B. 
45 


C. 
90 
D. 
120 


Hint 


