

1. 
Find the least common multiple of 6 and 15. 


A. 
15 
B. 
30 


C. 
60 
D. 
3 


Hint 


2. 
What is the least common multiple of 4, 5, and 16? 


A. 
160 
B. 
16 


C. 
80 
D. 
64 


Hint 


3. 
Albania has volleyball practice every 3 days and piano lessons every 4 days. If she had both a volleyball practice and a piano lesson on Monday, in how many days will she have both on the same day again? 


A. 
8 
B. 
12 


C. 
3 
D. 
4 


Hint 


4. 
Find the least common multiple of 18 and 24. 


A. 
432 
B. 
216 


C. 
72 
D. 
36 


Hint 


5. 
Marquez is on a certain baseball team that has a fourman pitching rotation, so each pitcher plays every four days. Walter is on another team, which has a fiveman rotation. If Marquez and Walter play in the same game today, how many days will it be before they play on the same day again? 


A. 
10 
B. 
20 


C. 
4 
D. 
5 


Hint 


