4 alarm clocks ring together at 5 am. They ring after 7, 8, 11 and 12 – McqOptions

MCQOPTIONS

1.	4 alarm clocks ring together at 5 am. They ring after 7, 8, 11 and 12 seconds respectively. How many times will they ring together again in the next 3 hours?
A.	5
B.	6
C.	3
D.	4
Answer» B. 6

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