Question

Six bells commence tolling together and toll at intervals of 2,4,6,8,10,12 minutes

respectively. In 30 hours, how many times do they toll together?​

Answer 1

30 hours=30×60=1800 minutes.

LCM of 2,4,6,10,8,12=120

number of times bell will toll together

1800/120+1

15+1=16

hence the bell will toll together is 16.