The ratio of boys to girls in a class is 3:2. If there are 18 boys, what is the total number of students in the class?
Show answer & explanation
Correct answer: B
Explanation
Boys : Girls = 3 : 2
3 parts = 18 boys
So, 1 part =
18 ÷ 3 = 6
Girls = 2 × 6 = 12
Total students = 18 + 12 = 30