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35 votes
35 votes
Three dogs bark at the interval of 10, 15,20 minutes respectively. If they bark at 10:30 once when will they bark together? ​

User Vashishtha Jogi
by
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1 Answer

13 votes
13 votes

Answer:

11:30

Explanation:

You have to find the LCM (lowest common multiple) and it is:

60

60 minutes is equal to 1 hour, so they'll bark together at 11:30

User Chrissa
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