Ratios and Proportions

Question

Students surveyed boys and girls separately to determine which sport was enjoyed the most. After completing the boy survey, it was determined that for every 3 boys who enjoyed soccer, 5 boys enjoyed basketball. The girl survey had a ratio of the number of girls who enjoyed soccer to the number of girls who enjoyed basketball of 7:1. If the same number of boys and girls were surveyed, and 90 boys enjoy soccer, how many girls enjoyed soccer? ______ girls enjoyed soccer. 

Answer 1

The ratio is 3/5 for boys and 7/1 for girls related to each game.

So ratio of boys to girls in soccer is 3/7.

3*30=90 therefore 7*30=210

number of girls is 210.