Answer:
285 students
Explanation:
Lets go over what we know!
The ratio is 15 : 1
This means for every 15 students, there is 1 teacher.
There are 19 teachers.
1 : 15 = 19 : ?
To find out how many students are there, we need to multiply our ratio by 19:
1*19 : 15*19 = 19 : 285
So there are 285 students to the 19 teachers.
Hope this helps :3