Sheet # 312
Name_________________________Date:_____________

1) Elevator A stops at every third floor and elevator B stops at every fifth floor. At which floor will both elevators stop?







2) Two buses leave the station at 7:00 a.m. Bus 1 completes a circuit every 40 minutes and Bus 2 completes the circuit every 50 minutes. What is the earliest time that the two buses will be back in the station together?







3) Maria has 2 jobs at home. Every 4 days she must clean the house. Every 5 days she must bring the grocery. If Maria cleans and brings groceries on December 1, what is the next date she will do both jobs?































































Answers for sheet # 312

1) LCM of 3 and 5 is 15. 15th floor

2) LCM of 40 and 50 is 200. 200 minutes. 10:20 am

3) LCM of 4 and 5 is 20. December 21