Question

Four bells ring at an interval of 4 7 12 and 14 seconds respectively the four Bells begin to ring together at 12 o'clock when will they ring next together

Answer 1

Answer:

lcm of 4 7 12 and 14 is 84

so they will ring after 84 min.

i.e after 1 he 24 min.

or at 1:24 .