Question

Tulane has a ratio of 3 girls to 4 boys in class. If there are 12 girls in class how many total students are there?

Answer 1

`28`

Explanation:

`"G" : "B" = 3 : 4`

From above ratio of girls and boys we can say that girls (`"G"`) are `3/7` of total (`"T"`) and boys are `4/7` of total.

`"G" = 3/7 × "T"`

`12 = 3/7 × "T"`

`"T" = (12 × 7)/(3) = 28`

∴ There are total `28` students in the class.