Hmmm hard to say....40 is good but if you have been understanding the course all year you really only need to do about 20 methinks ^.^;
Well thats what i have been doing anyway. That is, i do a past paper if i get stuck on any question i run into the text book and do about 10 of that type of question then continue on with the test ^.^; But there is more to just doing the test
you have to be getting them right nyo? ^.^
Pssh i am the only one getting the feeling "i might of left alot of this a tiny bit too late"
Oh well only things i have had trouble with is some tricky motion questions and probability(don't laugh u.u; i just cant seem to see it 90% of the time!)