15 students took a test that was scored from 0 to 100. If exactly 10 students scored 75 of more on the test, find the lowest possible value for the average of the scores of all 15 students.

15 students took a test that was scored from 0 to 100. If exactly 10 students scored 75 of more on the test, find the lowest possible value for the average of the scores of all 15 students. Correct Answer 50

Total score of 10 students if scored exactly 75 each = 10×75 = 750 Total score of 5 student if scored minimum or 0 = 0 Total score of 10 + 5 = 15 students = 750 + 0 = 750 Average of the 15 students = 750 / 15 = 50
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