Question

It takes 20 minutes for 5 people to paint 5 walls.

How many minutes does it take 9 people to paint 9 walls?

Answer 1

heres what i can find on the internet

Explanation:

So, 5 walls = 4500 ft2 & since there are 5 people (all doing equal work) then each man paints 900 ft2 in 20 minutes. So, the total time is 20 minutes.