Discrete Mathematics (Counting theory)  We want to spread a face-to-face exam among 24 students over three days: Wednesday, Thursday and Friday. An exam schedule is the score with the 3 subsets of students for each day. (Or, equivalently, a function e: {1,2,...,24}→{M, J,V}.) We want to count the possible schedules (=N) under different rules. 3. What is the number of schedules possible where all the choices in advance are made for the same day (Friday/Thursday)? Answer: N= Hint: Everyone takes the exam either Wednesday or Friday or everyone takes the exam either Wednesday or Thursday.

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