SOLUTION: Aura took three biology exams and has an average score of 85. Her second exam score was 11 points better than her first, and her third exam score was 2 points better than her secon

Question 570635: Aura took three biology exams and has an average score of 85. Her second exam score was 11 points better than her first, and her third exam score was 2 points better than her second exam. What were her three exam scores?
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Let Aura's three biology test scores be: a, b, and c. The average of these is:
So the sum (S) of the three scores is:

Now...
"Her second exam score (b) was 11 points better than her first,..."
"...and her third exam score (c) was 2 points better than her second exam (score)."
Starting with:
Substitute and = so we have:
Simplify.
Subtract 24 from both sides.
Divide by 3.
and = and =
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