Four bells ring at intervals of 4, 6, 8 & 14 seconds. They started ringing simultaneously at 12 noon. They will ring again simultaneously at:
Answer & explanation
Correct answer: option 2
LCM of 4, 6, 8, 14 = 168 sec = 2 min 48 sec.
Hence, bells will ring again at 12 : 02 : 48