On July 2 I have an exam, in this exam will be 40 questions in test with 5 variants of answer for each question.
- For each correct answer will be given +1 point.
- For each incorrect answer will be given -0.25 point
- For each blank answer no points will be given.
I have 40 question at all. Firtly I will be given 20 question for first subject then 10 for second subject and last 10 question for another subject. I know first and last subject for 100% but I don't know the second subject at all.
I want know in percentages, what will be the best at second part of exam, have I answer at random or leave all questions with no answer or answer to part of qustions.