1) 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?
42 times
16 times
23 times
32 times
Take a break!
You have watched Screen for 30 minutes, please relax your eyes by watching any other object at 20 feet for 20 secs.
