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Mathematics, 15.10.2020 09:01 dkargbo6034

in a certain examination the average grade of for student in class 8 68.4 and students in class B is 7.2 if the average of both classes combined is 70 find the ratio of the number of students in Class A to the number of class B

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in a certain examination the average grade of for student in class 8 68.4 and students in class B is...

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