A can of paint can hold 3 liters of paint. When the paint is brushed on a wall, the paint is 0.05 mm thick. How many cans of paint do you need to paint a wall that is 8 meters high and 20 meters long?

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Answer 1 · 2018-07-15T21:28:15

#3# cans

Let #x# number of cans of paint are required to paint a wall #20\times 8\ m^2# then the total volume of paint of wall is given as follows

#20\times 8\times 0.05\times 10^{-3}=(3\times 10^{-3})x#

#x=2.66#

#\approx3#

Thus, we require #3# cans of paint to completely paint the wall