Question

You have about 30 minutes to answer each question. You must take account of how many marks are
available for each part when you answer it. Even if you think you can write more, don't spend 15 minutes
answering a part worth only 5 marks. Leave space at the end of your answer and come back to it if you
have time to spare later. And if you can't think of an answer to some part, leave a space and move on to
the next part. Don't write about something else if you don't know the correct answer ‐‐ this is just a waste
of your valuable time (and the examiner's).