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Question

In a college, there are 10 periods per day each of 40 minutes. Students were shouting to reduce the number of periods but the principal does not want to reduce the working hours. How will you help the principal to reduce the number of periods to 8 without changing the total working hours?


  1. 55 minutes

  2. 50 minutes

  3. 45 minutes

  4. 30 minutes


Solution

The correct option is B

50 minutes


When the number of periods is 10, time for each period is 40 mins.
Let the time for each period be y mins when number of periods is changed to 8.
10 × 40 = 8 × y
y=10×408=50 minutes.

The principal should make each period of 50 mins.

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