Question

Five bells beginning together toll at interval 4s,
5s, 7s, 8s and 10s, respective!’After what interval
of time will they toll again together? (1)2 m 20 s
(2) 4 m 40 S
(3) 6 m 40 s (4) 2 m 40 s​

Answer 1

Answer:

I

Step-by-step explanation:

To the other side of the world and

Answer 2

Answer:

(2) 4m 40s

l.c.m of 4,5,7,8,10 is 280

280/60 is 4.40