four bells toll at intervals of 4 s, 7s,12sand 8 s. the bells toll together at 5am in the morning. find when will they toll agai. also find how many ti. es will they toll in 56 minutes.
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Step-by-step explanation:
In every 168 sec they all will toll. HOW? Take LCM of 4,8,12,7 = 168.
In 168 sec duration one will toll 41+1 times, another one 20+1 times, another one 13+1 times and other one 23+1 times. Means after 41,20,13,23 times then will all toll simultaneously.
Next, 56 min= 3360 sec
168*20=3360
So in 56 min 20 times they all will toll that also in every 168 sec interval.
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