Answer:
The ratio of teachers to students is 55:3.
Explanation:
If you took the students and the teachers you could tell that simplifying the ratio was possible, so I divided the both by 10 and got 55:3. I could see there were no more possible simplifications, therefore, 55:3 is the ratio you are looking for. If you didn't need it simplified the answer is 550:30. Have a great day!