A few quick points:
- I am not sure about those educated guesses. In the last minute of a test I would always try to DO as many questions as possible rather than rush through a lot more. Something tells me that I would be more likely to get more correct answers in the first case.
- Regarding stage 2, I passed it and I did not answer all the math questions in the computer tests (nowhere near), in fact, I only answered the ones I calculated.
- Thanks a lot for the plural of aircraft correction, eyeinthesky!
- Finally, when I was in university back in Spain, all the tests we had were such that each incorrect answer would count negative (-1/total number of incorrect answers in each question). That was especially tricky in the tests where there were multiple correct answers per question, you had to select all the correct ones so there were isolated cases of people getting a negative mark!