Question

it takes 47 minutes for 7 people to paint 7 walls. how many minutes does it take 20 people to paint 20 walls?

Answer 1

7 people, 7 walls, 48 minutes

Each person paints 1 wall in 48 minutes

20 persons, 20 walls

Each person can paint 1 wall in 48 minutes so it will take 48 minutes.