The pages I wrote were a4 and I used like 2-3 diagrams or graphs on each one. It was still pretty full pages though. I also
did spend 55minutes on each one.
My mark was the top mark at my school, finished with an average
of 92%. My class average is probably 81%.
The way I study is practice plans for extended responses, a variety of short answer questions and also a lot of practice on my multiple choice. I target each separately and about 45 minutes before the exam I just read the syllabus. Of course I know the course and do brief revision as well. Also some memorising of definitions and formula's.
Man if I score above 90 in Eco's I will be stoked, that's my aim. Cause some years they mark hard others they don't. Last year was relatively hard.