Brad and Lena are recording their classmates' eye color for a statistics assignment. In Brad's class, 3 out of the 25 students have green eyes. In Lena's class, 2 out of the 20 students have green eyes. Which class has the greater ratio of green-eyed students to total students?

1- Brad's class has the greater ratio
2- Lena's class has the greater ratio
3- They both have the same ratio