In a coaching institute, four lectures of same duration, were held starting from 8.00am and lasting till 1.30pm. If between two consecutive lectures, there was a break of 10 minutes, what was the exact duration of each lecture?
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From 8 am to 1.30pm
There are 5 hours and 30 minutes
Total time = 5×60+30
= 300 + 30
= 330 minutes
No of break = 3
Time spent in break = 3×10=30 min
Actual classes = 330-30 =300min
Duration of each class = 300/4
= 75 minutes
Hint: 1period break 2nd period break 3rd period break 4th period
There are 5 hours and 30 minutes
Total time = 5×60+30
= 300 + 30
= 330 minutes
No of break = 3
Time spent in break = 3×10=30 min
Actual classes = 330-30 =300min
Duration of each class = 300/4
= 75 minutes
Hint: 1period break 2nd period break 3rd period break 4th period
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