Studying for the exam

1 hour 38 mins 46 secs

11 mins 34 secs

1 min 55 secs

2 mins 47 secs

6 mins 12 secs

1 min 26 secs

1 min 52 secs

4 mins 10 secs

2 mins 24 secs

21 secs

14 mins 26 secs

20 secs

26 secs

15 secs

2 mins 22 secs

3 mins 57 secs

1 min 58 secs

7 mins 21 secs

1 min 5 secs

56 secs

44 secs

10 secs

52 secs

26 mins 36 secs

1 min 6 secs

48 secs

13 mins 38 secs

1 min 13 secs

16 mins

34 secs

6 mins 24 secs

8 mins 51 secs

48 secs

1 min 49 secs

1 min 37 secs

1 min

11 mins 54 secs

11 mins 38 secs

5 mins 2 secs

16 mins 6 secs