The table shows quiz marks out of 25 in each subject.   English Geography Mathematics Science Andy 67 100 81 39 Bill 58 47 65 69 Clive 47 61 92 74 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 64 extra marks by mistake. What are his real marks?