Three bells ring at an interval of 10, 20 and 30 minutes respectively. If they all ring together at 8:30 p.m, at what time will they again ring together? *
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Answered by
8
Answer:
we have to find ICM here
10=2*5
20=2*2*5
30=2*3*5
Lcm = 2*5*2*3
=60 minutes
means after one hour that is 9:30
Answered by
1
Right answer is =60 minutes
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