Question

The ratio of boys to girls in Mr. Johnson’s class is 3:5. If there are 32 students in his class, how many of these students are girls? Write equation and solve.

Answer 1

There are 20 girls in the class.
There are 12 boys in the class.
32/8 = 4
3 x 4 = 12
5 x 4 = 20
12 + 20 = 32

Answer 2

12:20

Explanation:

3 : 5 = 3x : 5x = 32

3x + 5x = 8x = 32

x = 32/8 = 4

3x = 3x4 = 12

5x = 5x4 = 20

so there are 12 boys and 20 girls