In a school, the first period starts at 8:30 a.m. and ends at 9:10 a.m. If the recess ends at 11:30a.m. and lasts for 20 minutes, how many periods are scheduled in the school before recess?
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Answer:
4 periods including the first period
Step-by-step explanation:
the recess will start at 11:10 am
after the first period there will be 120 minutes for the recess
If one period=40 minutes then 120 minutes=3 periods
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