The ratio of number of boys to that of girls in a class is 3:2. What is the percentage of boys in the class?
50
Given: The ratio of number of boys to that of girls = 3:2
Let, number of boys be 3x and number of girls be 2x (since the ratio of number of boys to that of girls is 3:2)
Total students = 3x+2x = 5x
∴ The percentage of boys = 3x5x×100 = 60%