Question

One gallon of paint (volume = 3.78 10-3 m3) covers an area of 20.0 m2. What is the thickness of the fresh paint on the wall

Answer 1

So if it covers that much area on the wall.
And we know that the volume of e paint remains constant and is spread uniformly on the wall then the thickness just has to be the
Volume of paint upon the area covered!
So it'll be?
3.78x10^-3/20
Getting me? :)

Answer 2

Does not matter .