in winters a school opens at 10:30 am and closes at 3:30 pm if the lunch interval is of 30 minutes . Find the ratio of lunch interval to total time of class periods?
Answers
Answered by
2
Step-by-step explanation:
Total hours of school is 5 hrs(300 minutes).
Lunch break is 30 minutes.
Total time of class period is 270 minutes
Lunch interval : Total time of class periods
30:270
10:90
1:9
So, 1:9 is the answer.
Answered by
2
Answer:
Total Time in the school
= 5 hr 30 min =330 min [ 1 hr = 60 min]
Lunch Time = 30 min
Total Time in the class periods,
= Total Time in the school - Lunch Time
= 330 - 30
= 300 min
Therefore, the ratio of lunch interval to total time of the class period,
= \frac{30}{300}
300
30
= \frac{1}{10}
10
1
Hence, the ratio is 1 : 10.
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