Three bells ring together at 8:30 a.m. If they ring at at the intervals of 4 minutes, 5 minutes and 6 minutes respectively, then at what time will they ring together next?
(A) at 8:45 a.m.
(B) at 9:30 a.m
(C) at 9:45 a.m
(D) at 10:15 a.m
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Step-by-step explanation:
Three bells ring together at 8:30 a.m. If they ring at at the intervals of 4 minutes, 5 minutes and 6 minutes respectively, then at what time will they ring together next?
(A) at 8:45 a.m.
(B) at 9:30 a.m
(C) at 9:45 a.m
(D) at 10:15 a.m
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