SOLUTION: Twenty seven students averaged 70 on their midterm. Could 15 of them score above 90? Explain

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Question 461206: Twenty seven students averaged 70 on their midterm. Could 15 of them score above 90? Explain
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
If 27 students averaged 70, then the total score is 27*70 = 1890. If 15 of them score above 90, this total score must be at least 1350. It is possible for the other 12 to score below 540, so 15 of them scoring above 90 is a possibility.