. In a certain examination, the average grade of all students in class A is 68.4 and stu- dents in class B is 71.2. If the average of both classes combined is 70, find the ratio of the number of students in class A to the number in class B.
. In a certain examination, the average grade of all students in class A is 68.4 and stu- dents in class B is 71.2. If the average of both classes combined is 70, find the ratio of the number of students in class A to the number in class B.
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter20: Ratio And Propor Tion
Section: Chapter Questions
Problem 18A
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