A class starts at 11:00 am and lasts till 2:27 pm. Four periods of equal duration are held during this interval. After every period, a rest of 5 minutes is given to the students. The exact duration of each period is :
42 minutes
48 minutes
51 minutes
53 minutes
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2014
There are four periods of equal duration, with a 5-minute rest after every period. For four periods, there will be three rest intervals between them.
Total rest time = 3 intervals * 5 minutes/interval = 15 minutes.
The total time occupied by the four periods is the total class duration minus the total rest time.
Total period time = 207 minutes – 15 minutes = 192 minutes.
Since there are four periods of equal duration, the duration of each period is the total period time divided by the number of periods.
Duration of each period = 192 minutes / 4 periods = 48 minutes/period.