Question

lumbers
1. Bell A tolls for every 3 minutes, B tolls
for every 4 minutes & C for every 5
minutes. In duration of 24 hours, how
many times do all the 3 bells toll
together?

Answer 1

Step-by-step explanation:

Answer:

Three bells toll at intervals - 3min , 4min and 5min.

So , if they start tolling together, they will ring together at LCM ( 3,4,5)

So, We have to find LCM of 3, 4 and 5.

3 = 3×1

4 = 2×2

5 = 5 x 1

LCM (3,4,5) = 3x2x2x5 = 60

So , the LCM of 3,4and 5 is 60.

All the three bells will toll together after 60 minutes or 1 hour.

Therefore, number of times all the bells toll together in the duration of 24 hours = 24 times.