When asked what her math average was, a student coyly responded: "I've taken four tests to date and when I add the highest score with my lowest score and divide the result by the sum of my other two scores, I get a ratio of 1.4"

Assuming all scores are equally weighted and each grade is a real number between 0 and 100 inclusive, find four scores that produce the highest possible average (arithmetic mean), and show that a higher average is not possible.

(In reply to re(3): Question. by tomarken)

Would not the teacher weight each of the 16 questions at an integer value such that the sum added to 100?

Edited on December 10, 2006, 1:34 pm

Posted by Bractals on 2006-12-10 13:31:08