A professor was giving a big test one day to his students.He handed out all of the test papers and went back to his desk to wait.

Once the test was over,the students all handed the papers back in.The professor noticed that one of the students had attached a＄100 bill to his paper with a note saying“A dollar per point”.

The next class the professor handed the graded papers back out.This student got back his paper and＄64 change.