SOLUTION: An instructor has graded 32 exam papers submitted by students in a class of 33 students, and the average so far is 66. (The maximum possible score is 100.) How high would the score
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Question 670280: An instructor has graded 32 exam papers submitted by students in a class of 33 students, and the average so far is 66. (The maximum possible score is 100.) How high would the score on the last paper have to be to raise the class average by 1 point? Answer by swincher4391(1107) (Show Source):
You can put this solution on YOUR website! So, we have an average of 66 out of 31 students. That's 66*31 = 2046 total points. We need to get to one extra point or 67 out of 32 students. That's 67*32 = 2144. So 2144-2046 = 98% which is what the score would have to be.
