Great question !
The least common multiple of 8, 9, 12, and 15 is 360.
The bells will coincide again after 360 minutes = 6 hours.
That's 9:00 PM .
To find when the four bells will toll together, we need to find the least common multiple (LCM) of the given intervals. The given intervals are 8, 9, 12, and 15 minutes. The LCM of these numbers is 360 minutes, which is equivalent to 6 hours. Therefore, the four bells will toll together every 6 hours, starting from 3 pm. So, the next time they will toll together will be at 9 pm.
The four bells will toll together again after 360 minutes, which is equal to 6 hours. Thus, they will toll together again at 9 PM. This is calculated by finding the least common multiple of their tolling intervals.
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jadi kecepatan Arfan adalah0,5 detik/meter