Question

A class starts at 10

a.M. And lasts till 1.27 p.M. Four periods are held during this interval. After every period, 5 minutes are given free to the students. The exact duration of each period is:.Find the answer

Answer 1

Answer:

48 min

Step-by-step explanation:

Total time lapsed between 10 am and 1.27 pm = 3 hours and 27 min = 180 + 27 min = 207 min

 

Let the duration of each period be x min

 

5 min are given free to each student. So, there have been 4 periods held, hence there would be 3 free breaks given

 

4x + 5*3 = 207

4x = 207-15

4x = 192

x = 48 min.  

Hence each period if of 48 min.