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?
The '2 second one' would ring 900 times The '4 second one' would ring 450 times The '6 second one' would ring 300 times The '8 second one' would ring 225 times The '10 second one' would ring 180 times The '12 second one' would ring 150 times
