Question 767800
Find surface area of the wall and use paint's ratio on that area, and if nonwhole, take one more gallon can, to have at least enough paint to finish the wall.


AREA OF WALL:
{{{20*12=240}}} sq. ft.


HOW MANY GALLON CANS?
{{{240*(1/80)}}}  {{{sqft(gallon/sqft)}}}
ANSWER: 3 gallons.