Question
A group of 20 boys and 40 girls took part in a Chinese exam. The average score of the boys was 51 points. While the average score of the girls was 81 points. What was the average score of all the pupils who participated in the exam?
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A group of 20 boys and 40 girls took part in a Chinese exam. The average score of the boys was 51 points. While the average score of the girls was 81 points. What was the average score of all the pupils who participated in the exam?