In a class, there are 50 boys and 30 girls. The ratio of the number of boys to the number of girls in the class is:
The ratio of number of girls and boys in a class is 3 : 1. If 50% of girls and 75% of boys are 5 feet tall or above, then what is the percentage of students in the class who are smaller than 5 feet?
In a class of 50 students there are 30 girls. The ratio of boys to the girls is: