There are three bells which ring at regular intervals of 30, 45 and 60 seconds respectively. If all of them ring together at 1:00 PM, at what time will they ring together again?
A1:03 PM
B1:24 PM
C1:30 PM
D1:12 PM
Answer:
A1:03 PM
B1:24 PM
C1:30 PM
D1:12 PM
Answer:
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