Because for the prelim exam, I got the following results (first rank for all!):
Physics - C
Chemistry - B
Maths ADV - A
Maths EXT 1 - B
Engineering Studies - C
English ADV - A
Ancient History - A
But for the entire year, I got the following (still first rank for all!):
Physics - A
Chemistry - B
Maths ADV - A
Maths EXT 1 - A
Engineering Studies - A
English ADV - A
Ancient History - A
Which do I use????????