Question
A group of 30 boys and 50 girls took part in a Mathematics test. The average score of the boys was 77 points. While the average score of the girls was 85 points. What was the average score of all the children who participated in the test?
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A group of 30 boys and 50 girls took part in a Mathematics test. The average score of the boys was 77 points. While the average score of the girls was 85 points. What was the average score of all the children who participated in the test?