Question

If 20% of the students in the sixth-grade ride home in a car, how many students are in sixth grade if 30 ride home in a car?

Answer 1

20%=30
10%=15
With this ratio, we need the percentage at 100%
100%=150
If there are 150 students, let check.
30÷150
.2×100
20
There are 150 kids.