

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


A. 
15 
B. 
60 


C. 
3 
D. 
30 


Hint 


2. 
Find the least common multiple of 3, 4, and 5. 


A. 
30 
B. 
60 


C. 
12 
D. 
120 


Hint 


3. 
Find the least common multiple of 3 and 6. 


A. 
6 
B. 
3 


C. 
18 
D. 
12 


Hint 


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


A. 
36 
B. 
432 


C. 
216 
D. 
72 


Hint 


5. 
Rachel and Diego both jog regularly. Rachel jogs every other day, and Diego jogs every third day. They both jogged today. How many days will it be before they both jog on the same day again? 


A. 
6 
B. 
3 


C. 
2 
D. 
12 


Hint 


