Question

If 4 people can paint 8 walls in 60 minutes,how long will it take 5 people to paint 4 walls?

Answer 1

4 people paint 8 walls in 60 minutes

So 1 person paints 8 walls in 240 minutes

So 1 person paints 1 wall in 30 minutes

So 5 people paint 1 wall in 6 minutes

So 5 people paint 4 walls in 24 minutes