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+4 votes
1.0k views
in Mathematics by (10.8k 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?

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by (13.2k points)
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Best answer
The two bells ring together again at 12:00 pm

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