smartest classmate

*the teacher hands you a test paper and you first write your name once you go to question 6 it says* Ben has 11p coin the doll costs 20p how many more does Ben need? *so the smart kid writes the number* 9 easy *the smart kid slowly finished the whole page and she puts her hand up and says to the teacher* I'm done. teacher: ok *the teacher marks the page and the total mark was* 32.