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Four bells ring at intervals of 4, 6, 8 and 14 seconds. They start ringing simultaneously at 12.00 O’clock. At what time will they again ring simultaneously ?
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- 12 hrs. 2 min. 48 sec.
- 12 hrs. 3 min.
- 12 hrs. 3 min. 20 sec.
- 12 hrs. 3 min. 44 sec.
Correct Option: A
LCM of 4, 6, 8, 14 = 168 seconds = 2 minutes 48 seconds
They ring again at 12 + 2 min. 48 sec.
Required time = 12 hrs. 2 min. 48 sec.
