The rules are simple. 30 minutes with me - C. 40 - B. 50 - A. How much do you want to be an A student?

34 40

31 42

42 45

36 43

11 11

36 43

39 20

15 10

44 43

22 40

23 40

19 20

20 20

35 45

17 40

18 40