It takes 45 minutes for 4 people to paint 5 walls. How many minutes does it take 6 people 4 walls

The real question is, how many minutes does it take for one person to paint one wall, and at what rate / time does it take for that one person. Without these first two key elements, this question has no logic to it. You should ask your teacher about it or just try to make something that sounds legit enough to be an answer.

I think it's 35m not sure