Question

There are 20 teachers and 705 students in Corey's school. What is the ratio of teachers to students?

Answers:
A. 4/141
B. 141/4
C. 5/141
D. 141/5

My Answer: A: 4/141

Please check if I am right. Thanks!
Ms. Sue
You're right.
Potato
Yes you are correct!
Sun
I don't no