In regards to ocr mei mathematics, last year I got an A
90 UMS in C1
79 UMS in S1
and 90 UMS in C2
I need an A*, which I understand to get you need 90 UMS in C3 and C4, however I got 9/18 in my C3 coursework, what mark minimum would I need to get in C3 to get 90 UMS