It takes 54 minutes for 4 people to paint 6 walls.
how many minutes does it take 6 people to paint 7 walls?

Given the statement: It takes 54 minutes for 4 people to paint 6 walls minutes per wall

Since, it takes 4 people 9 minutes to paint 1 wall

Each person paints of the wall in 9 minutes

Each person paints of the wall in 1 minute at the same rate.

then;

6 people paint of 1 wall in 1 minute

⇒ Number of minutes it takes 6 people to paint 1 wall = 6 minutes

It takes 6 people 6 minutes to paint 1 wall

It takes 6 people minutes to paint 7 walls

Therefore, it takes 42 minutes for 6 people to paint 7 walls.

step-by-step explanation: 4 cause 2+2=4