Question
A group of 20 girls and 30 boys took part in a Mathematics exam. The average score of the girls was 75 points. While the average score of the boys was 65 points. What was the average score of all the children who participated in the exam?
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A group of 20 girls and 30 boys took part in a Mathematics exam. The average score of the girls was 75 points. While the average score of the boys was 65 points. What was the average score of all the children who participated in the exam?