Question
The ratio of the number of girls to the number of boys in a class is 3 : 5. The ratio of the pupils in the class who scored gold to those who did not score gold is 4 : 1. The ratio of the girls who scored gold to those who did not score gold is 11 : 4. What is the ratio of boys who scored gold to the boys who did not score gold?
3 m

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The ratio of the number of girls to the number of boys in a class is 3 : 5. The ratio of the pupils in the class who scored gold to those who did not score gold is 4 : 1. The ratio of the girls who scored gold to those who did not score gold is 11 : 4. What is the ratio of boys who scored gold to the boys who did not score gold?