It takes 32 minutes for 3 people to paint 4 walls.

How many minutes does it take 4 people to paint 7 walls?

Athena
Mar 7, 2017

#1**+5 **

It takes 32 minutes for 3 people to paint 4 walls.

How many minutes does it take 4 people to paint 7 walls?

It will take 8 minutes for 3 people to paint 1 wall.....then each person paints 1/24 of a wall in1 minute

Then 4 people will paint 4(1/24) = 1/6 of a wall in one minute

So 4 people will take.....7 / (1/6) = 42 minutes to paint 7 walls

CPhill
Mar 7, 2017

#1**+5 **

Best Answer

It takes 32 minutes for 3 people to paint 4 walls.

How many minutes does it take 4 people to paint 7 walls?

It will take 8 minutes for 3 people to paint 1 wall.....then each person paints 1/24 of a wall in1 minute

Then 4 people will paint 4(1/24) = 1/6 of a wall in one minute

So 4 people will take.....7 / (1/6) = 42 minutes to paint 7 walls

CPhill
Mar 7, 2017