Four bells ring simultaneously at a certain instant. Thereafter, they ring at intervals of 6, 8, 10, 12 and 24 seconds respectively. In how many minutes will they ring together again for the first time?
Answer & explanation
Correct answer: option 2
LCM of (6, 8, 10, 12, and 24) = 1080 seconds = 18 min
Hence,
The bells will ring again together for the first time after 18 min