Question

If 3 clocks ring 12,15 and 18 seconds ahead and back.If the ring at a time at 8.35 am then next at what time they will ring?

Answer 1

ANSWER

12 - 2*2*3

15 - 5*3

18 - 2*3*3

here we have to find L.C.M because we have find at which time all the bell ring

therefore

L.C.M - 2*2*3*3*5 = 36*5 =180

all the bell will ring unsimultaneosly after 180 seconds

if they ring first at 8:35 am than next will ring at 12:35am