Question

In physics class, the girl to boy ratio is 3 to 4.

If there are a total of 14 students, how many girls are there?

Answer 1

Cross multiply and solve for g.

3/7 = g/14

Answer 2

g/b = 3/4
4 g = 3 b
b = (4/3) g

g + 4 g/3 = 14
7 g/3 = 14
g/3 = 2
g = 6