exam tips for anyone who cares to know

Another observation, after reading this post.

http://retributions.wordpress.com/2006/10/09/useless-observation/

My experience with the exam system tells me this -
Attempting the complete question paper (of course leaving out the choices) gives better results than attempting what you know and concentrating on writing complete precise answers to that.

For example, you have to attempt any 10 questions out of 15 in the whole paper, each carrying equal weightage. Out of which you know answers to 8 questions very well.
Now, your focus should be to complete the paper, attempt and answer all 10 questions. Even if you have to spend less time on the ones you know very well.

I am still way too busy to post more frequently, so more tips and reasons for above paragraphs later. But if you think about it, and have a fair idea about the basic probability, you will figure out why? (On second thoughts, you dont need any knowledge of probability, you just need basic math).