Question

three bells ring at regular intervals of 20, 36 and 48 mins respectively. At what time will they start ring together again next, if they start simultaneously at 12 noon? How many times will each bell ring during that time​

Answer 1

Answer:

12 am

Step-by-step explanation:

LCM of 20 , 36 , 48 = 720

720 min to hours = 720/60 = 12 hours

12 hours after noon = 12 am

next bell will ring at : 12 am

Answer 2

Answer:

three bells ring at regular intervals of 20, 36 and 48 mins respectively. At what time will they start ring together again next, if they start simultaneously at 12 noon? How many times will each bell ring during that time