SOLUTION: If the mean of 3 student in a class is 9 and the median is 11. Find the lowest number.
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Question 654432
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If the mean of 3 student in a class is 9 and the median is 11. Find the lowest number.
Answer by
jim_thompson5910(35256)
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Hint:
Let x y and z be the three values where x < y < z.
The median is 11, so y = 11
The mean is 9, so (x+y+z)/3 = 9 or (x+11+z)/3 = 9