Four bells ring at the intervals of 5, 6, 8, and 9 seconds. All the be – McqOptions

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1.	Four bells ring at the intervals of 5, 6, 8, and 9 seconds. All the bells ring simultaneously at the same time. They will again ring simultaneously after:
A.	12 minutes
B.	18 minutes
C.	6 minutes
D.	24 minutes
Answer» D. 24 minutes

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