We will grade the midterm as follows. The highest score will receive the grade of A+. The second-highest score will equal 100%, and begin the A's. From there, 90% will be A-, 80% B-, and so on. So, if the second-highest score is 55, then a score of 49 (90% of 55) will be the cutoff for A-, 44 (80% of 55) for B-, 38 (70% of 55) for C-, and 33 (60% of 55) for D-.
Here is a sample passage and question:
Question:
An answer that would receive full credit: