Question

Four bells ring at intervals of 4, 7, 12, and 84 seconds. They rang together at 7 o'clock. When will they ring together again?​

Answer 1

Answer:

7:01:24

Step-by-step explanation:

LCM of 4,7,12,84 = 84 sec

the rang together at 7 O' clock .

After 84 sec it will be rang together .

84 sec = 1 min 24 sec

After 1min 24 sec = 7:01:24

Thank you