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pls, solve my question.

+4 votes
asked Jun 22, 2016 in Mathematics by Puskar (5,910 points)
In a school the duration of a class in the primary section is 40 min and in the secondary section it is 1 hour. If both section begain school at 10 a.m.when will the two bells ring together again?

1 Answer

+1 vote
answered Jun 23, 2016 by vikash (21,287 points)
selected Jun 23, 2016 by Puskar
Best answer
The two bells ring together again at 12:00 pm

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