Question

1.. Six bells commence tolling together and toll at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively
After how much time will they toll together again?​

Answer 1

Step-by-step explanation:

The least common multiple (LCM) of 2, 4, 6, 8, 10, and 12 is 120. Thus, the bells toll together every 120 seconds (or 2 minutes), so in 30 minutes they will toll simultaneously 30/2 = 15 times