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Answers to the eighth grade mathematics textbook published by Beijing Normal University, Volume II, Chapter III Review Questions 13 Answers.
(1) Let the total number of eighth-grade students in our school be X,

240 & ltx≤300

(2) Let the total number of eighth-grade students in this school be X.

5× 120/x= 120x6/x+60

The solution is x=300.

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