Question

1. The ratio of students in 8th grade that preferred math

to science is 6:4. If there are 72 students that
preferred science, what is the total number of
students in 8th grade?
a. 180 students
b. 225 students
c. 130 students
d. 245 students
21 Illuminate Education Inc.

Answer 1

a. 180

Explanation:

`(4x)/(10)` =
`(72)/(1)`

cross-multiply:

4x = 720

x = 180