Three bells ring at intervals of 6 , 12 and 18 minutes. If all the three bells rang at 6 a.m., when will they ring…

CBSE Class 10 Maths PYQ · Real Numbers · Word Problem · 3 Marks · March 2023 · Standard

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1153 Marks · March 2023 · Standard
Three bells ring at intervals of $6$, $12$ and $18$ minutes. If all the three bells rang at $6$ a.m., when will they ring together again?
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LCM of $6, 12, 18 = 36$
So, all the three bells ring together after $36$ minutes at $6:36$ AM
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