Question: there are 10 girls and 20 boys in a classroom . what is the ratio of girls to boys ?
A) 1 / 2
B) 1 / 3
C) 1 / 5
D) 10 / 30
E) 2 / 5
Correct answer: A
Grade: 6 | Topic: Ratios and proportions | Difficulty: Easy | Standard: 6.RP.A.1