In a class there are 30 girls and 15 boys and the total average weight of the class is 47 7 15 47 \frac{7}{15} 47 15 7 kg. The average weight of boy...
Question
In a class there are 30 girls and 15 boys and the total average weight of the class is kg. The average weight of boys is 58 kg. Find the approximate average weight of girls.