Four bells tolls with interval of 30,70,120. And 140 seconds respectively. After how long will they again toll together.
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... of 8,9,12, and 15 second respectively. When will they toll again together? ... All 4 bells will toll together after every 360 seconds ...
Step-by-step explanation:
LCM of 8,12,15,18 is 360.
no. of seconds in one hour =3600
so the bells will toll together 3600/360 that is 10 times
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