Answer:There are 18 students per teacher, and 10 per tutor. there are 8 tutors for 80 students
Explanation:
First you need to divide 90 by five to find out how many students per teacher.
For the second question, you should do the same thing. 30 divided by 3.
Last, you should divide 80 by the number from the second question (Ten) to get 8.