The table shows quiz marks out of 25 in each subject.   English Geography Mathematics Science Andy 90 76 82 31 Bill 58 60 78 78 Clive 53 74 72 70 1. What is the difference betweenClive's marks in English and Science?   2. How many more marks does Andy need for a perfect score in Mathematics?   3. In Geography, how many more marks did Andy get than Bill?   4. Find the difference between Andy's Science marks and Bob's English marks.   5. The Mathematics teacher gave Clive 47 extra marks by mistake. What are his real marks?