Alarms from 3 different clocks sound after every 2, 4 and 6 hours, respectively. If the clocks are startedat the same 6 time, how many times do the alarms ring together in 3 days?

Alarms from 3 different clocks sound after every 2, 4 and 6 hours, res

1.	Alarms from 3 different clocks sound after every 2, 4 and 6 hours, respectively. If the clocks are startedat the same 6 time, how many times do the alarms ring together in 3 days?
A.	6
B.	3
C.	9
D.	2
Answer» B. 3