- 9-1: 162+ marks
- 8: 146-161 marks
- 7: 130-145 marks
- 6: 114-129 marks
- 5: 98-113 marks
- 4: 82-97 marks
- 3: 66-81 marks
- 2: 50-65 marks
- 1: 34-49 marks
- U: 0-33 marks
So, to get a grade C (grade 4), you need to get between 82-97 marks.