Question

four bells begin to toll after 3,8,20 and 24 seconds respectively.if they strike together at 12 noon they wil strike together again at?

Answer 1

Find the H.C.F

H.C.F = 120

120 seconds = 2 minutes

Therefore, the bells will ring together after 2 mins from 12 noon .i.e at 12:02.

Hope this answer helps you... :)