Ranks of CAD results

Below is the table of required marks per each category:

MarkProfessorAsst. ProfessorLecturerAsst. Lecturer
A*>80>70>55>45
A60-7950-6935-5425-44
B45-5935-4924-3418-24
C20-4420-3415-2312-17
D6-196-196-146-11
E0-50-50-50-5

Marks C, D and E are considered as failed.