You are implying that each question was worth 5 points. If that is the case, then you answered correctly 60/5=12 questions. So, therefore, you missed 20 - 12 =8 questions. Because 8 x 5 =40 points + 60 points that you got=100 pts.
You are implying that each question was worth 5 points. If that is the case, then you answered correctly 60/5=12 questions. So, therefore, you missed 20 - 12 =8 questions. Because 8 x 5 =40 points + 60 points that you got=100 pts.
This depends on how many points were awarded per question and if any of the question were weighted. If each question was worth an equal amount of five points you would have 12 questions correct and 8 questions incorrect.