the student came in his classmate after

10 mins 15 secs

7 mins 33 secs

6 mins 10 secs

10 mins 52 secs

10 mins 45 secs

8 mins 15 secs

24 mins 20 secs

5 mins 59 secs

10 mins

18 mins 13 secs

11 mins 23 secs

1 min

10 mins 53 secs

9 mins 59 secs

10 mins 46 secs

7 mins 31 secs

19 mins 13 secs

10 mins 2 secs

15 mins 4 secs

16 mins 49 secs

9 mins 57 secs

10 mins 6 secs

6 mins 49 secs

53 mins 44 secs

8 mins 32 secs

11 mins 23 secs

15 mins 11 secs

17 mins 53 secs

10 mins 29 secs

7 mins 44 secs

7 mins 43 secs

7 mins 13 secs

12 mins

15 mins 43 secs

16 mins 48 secs

8 mins 50 secs

10 mins 29 secs

8 mins 25 secs

12 mins 45 secs

30 secs