Answer:
1. 3 teachers to 45 pupils
3:45 1:15
2. 5 books to 20 pupils
5:20 1:4
3. 36 flowers to 9 vases
36:9 4:1
4. 30 garbage cans to 24 classrooms
30:24 5:4
5. 40 glasses of juice to 25 sandwiches
40:25 8:5
Step-by-step explanation:
Hope it helps.
Correct me if I'm wrong.