In a school the duration of a class in the primary section is 40 minutes and in the middle section it is 1 hour .If both sections begin at 9 am ,when will bell of the two sections ring together again ?
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Answered by
4
11 AM
CARRY OUT THE LCM OF 40 min and 60 min.
CARRY OUT THE LCM OF 40 min and 60 min.
Answered by
3
Answer:
Step-by-step explanation:
LCM OF 60 AND 40 = 120 MINUTES
9AM+ 120 MINUTES
= 9AM + 2 HOURS
= 11:00 AM
cutepomerian:
brainliest answer
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