Question

If one gallon of paint covers 825sq.ft how much paint is needed to cover 2640 sq.ft

Answer 1

4 (3.2 exactly but you can't go to the store and say I want to buy 3.2 gallons of paint. They will look at you funny, So in this case you will by 4)

Explanation:

2640/825 = 3.2 gallons

Answer 2

Explanation:

1 gallon = 825 square feet

x gallons = 2640 square feet

1/x = 825/2640 Cross multiply

825 x = 2640 Divide by 825

x = 2640/825

x = 3.2 gallons.

The 0.2 has to be rounded up (usually you would round down. That's because you have to get another gallon to paint the small area that is not covered.

So the rounded answer is 4 gallons.