Question

Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?

Answer 1

the lcm of 2,4,6,8,12 is 120
mean in every 120 second the toll together
therefor in 30 minutes they toll  15 times

Answer 2

Answer:

16

Step-by-step explanation: