SOLUTION: You scored 7 points higher on your mid-terms than your prelims and 11 points higher on your finals than on your prelims. What score did you get in your prelim exam if your average

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Question 1093377: You scored 7 points higher on your mid-terms than your prelims and 11 points higher on your finals than on your prelims. What score did you get in your prelim exam if your average score for the three exams was 85?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(p+ p+7+ p+11)/3=85
(3p+18)/3=85
p+6=85
p=79 on the prelim
p+7=86 on the midterm
p+11=90 on the final