Ahmed and Emily are having a contest to see who can get the best grade in the class. There have been 9 assignments and Ahmed has a 91 in the class. Emily has a 92. The final assignment is worth the same amount as all the other assignments. Emily got a 90 on the final assignment. What is the minimum grade Ahmed needs to get to beat Emily if all grades are whole numbers?
Ahmed has scored 819 total points in the class thus far because 9 x 91 = <<9*91=819>>819
Emily had scored 828 total points before the final assignments because 9 x 92 = <<9*92=828>>828
She scored 918 total points after the final assignment because 828 + 90 = <<828+90=918>>918
Ahmed needs to score a 99 to tie Emily for the semester because 918 - 819 = <<918-819=99>>99
Ahmed needs to score a 100 to beat Emily for the semester because 99 + 1 = <<99+1=100>>100
#### 100