Question

Four bells ring at a gap of 4,7,12 & 84 minutes respectively. If they ring together at 8'0 clock in the morning then when will they ring together again?

Answer 1

Answer:

Step-by-step explanation:

The next well will together rang at 9:24 min

The this answer is according to me

I have find it as follows

if the bell is wrong together that is we have to find the LCM what what will be the next lowest minimum time in which the bell will wrong again at the same time so I have found LCM and the LCM of these four numbers came 84 .so after 84 minutes of 8 o'clock the bell will ring again at the same time so 84 minutes means 1 hour and 24 minutes.so at 9:24 bell will again ring at same time