

1. 
From a group of six students, four are to be chosen to form a committee. In how many ways can the committee be chosen? 


A. 
30 
B. 
720 


C. 
360 
D. 
15 


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. 
604,800 
D. 
120 


Hint 


3. 
You have tests coming up soon in all your classes. You have six schoolbooks that you could take home, but only room for four in your backpack. How many different combinations of schoolbooks can you take home in your backpack? 


A. 
4 
B. 
15 


C. 
24 
D. 
30 


Hint 


4. 
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 each person can shake hands with the other 11 people in the room. 


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


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. 
45 
B. 
90 


C. 
120 
D. 
30 


Hint 


