Question

Four bells ring at intervals of 3,7,12 and 14 seconds respectively. At what time will they ring together if they start ringing at 9 am​

Answer 1

Answer:

1hr 24 minutes. Hope this helps! To find the answer, we need to find the LCM of 3, 7, 12, 14.

Answer 2

Answer:

8:24 AM

Step-by-step explanation:

LCM of 3, 7, 12, 14 = 84(2 * 2 * 3 * 7)

LCM of 3 = 3

LCM of  7 = 7 

LCm of 12 = 2*2*3 

LCM of 14 =  2*7 

So, 84 minutes = 60 + 24 

                        = 1hr 24 minutes.

                  Given 7 a.m add 1 hr 24 minutes to it, we get

                 = 8.24 AM