SOLUTION: Ginny's median score on three test was 89. Her mean score was 88 and her range was 11. What were her three test scores?

Question 957313: Ginny's median score on three test was 89. Her mean score was 88 and her range was 11. What were her three test scores?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
With a mean score of 88 on three tests, the sum of her scores was 3(88)=264
With three scores, the median is one of the scores, so the sum of the other two scores is 264-89=175. Let L=the lower score and H=the higher score. The range is 11, so H-11=L
H+L=175 Substitute for L
H+(H-11)=175
2H=186
H=93 ANSWER 1: The higher score is 93.
H-11=L
93-11=L
82=L ANSWER 2: The lower score is 82.
CHECK:
(82+89+93)/3=88
264/3=88
88=88
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