Question 1099513
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86.


In this PARTICULAR CASE it is exactly equal to the arithmetic mean of the average scores of each class.


See the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/Average/Solved-problems-on-average-scores-weight-height-and-temperature.lesson>Solved problems on average scores, weight, height and temperature</A>

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