Return code: 0 Output: The average mark obtained by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mar... | EduVai
MCQ Practice ID: 58180 Mathematics

The average mark obtained by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mar...

The average mark obtained by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mark obtained by all students?

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