Answer only four of the given questions. If more solutions are provided by a single student, I'll mark four randomly selected of them, only. Each of the questions is worth six points, even though the questions probably differ slightly with respect to difficulty and the amount of work required.
The solutions shall be delivered to me on paper, either personally or in a closed envelope through the department office, not later than at noon on March 23. This is a strict deadline. The solutions can be either hand-written or printed as long as they are easily readable.
Solutions can be given either in Finnish or in English. I recommend that foreigners use English, and Finns use Finnish.
How long should the answers be? A few pages could be an appropriate length of an answer to a single question. A few lines is probably too little, and ten pages is probably way too much for a single question.
Please contact me as early as possible if you have any problems, or if you are in doubt with respect to interpreting these instructions.