Question

I need help Ik it’s might be easy be am so confused I don’t get it

Answer 1

Answer:

12

Step-by-step explanation:

I always look at ratios as fractions.

since 3/4 ratio and there are 9 boys and 3*36=9.

that means 4*3=12.

we can check by simplifing 9/12 equals 3/4.