Alex,
As i said before, i am not satified by the passing grade only. i know i can do better.
yas1891,
Mostly. Part of it is because i hv a good memory. PR is the main course.
As for the time, every subject i only spent 1 and a half hrs on preperation. that's what the PR book recommended for i session.
Also, listening to the teacher during class is important.