Question

Three bells toll at intervals of 16 seconds, 20 seconds and 24 seconds respectively.If they all toll together 8 a.m., when will they all toll together again?​

Answer 1

Step-by-step explanation:

Firstly we will take the LCM (least common multiple) which is equal to 240 seconds.

240 seconds = 240/60 = 4 minutes.

Hence, they will toll again together at:

8 AM + 4 minutes = 8:04 AM

Answer 2

Answer:

8:04

Step-by-step explanation:

First find the LCM of 16 , 20 , 40

= 240

Then, change the second into minutes

= 240/60 = 4 minutes

So, They will together toll again at

8:00 am + 4 minutes

= 8:04

Thank you .