If class A has 11 boys and 18 girls, class B has 13 boys and 17 girls, and class C has 20 boys and 9 girls, which class has the biggest ratio(s) of boys to girls?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Class C.
Ratio of boys to girls in Class A = 11 : 18 ⇒ 11/18 = 0.611
Ratio of boys to girls in Class B = 13 : 17 ⇒ 13/17 = 0.76
Ratio of boys to girls in Class C = 20 : 9 ⇒ 20/9 = 2.22
Thus, Class B has the biggest ratio