Question
The ratio of the number of girls to the number of boys in a class is 3 : 4. The ratio of the children in the class who scored distinction to those who did not score distinction is 3 : 1. The ratio of the girls who scored distinction to those who did not score distinction is 7 : 5. What is the ratio of boys who scored distinction to the boys who did not score distinction?
3 m

Click button first when a symbol is required. X

The ratio of the number of girls to the number of boys in a class is 3 : 4. The ratio of the children in the class who scored distinction to those who did not score distinction is 3 : 1. The ratio of the girls who scored distinction to those who did not score distinction is 7 : 5. What is the ratio of boys who scored distinction to the boys who did not score distinction?