Question

A wooden fence 6 ft. high and 300 ft. long is to be painted. How many gallons of paint are needed if one gallon covers 400 sq. ft.?

Answer 1

Ok first find the area
area = width * height
Area = 6 ft * 300 ft
Area = 1800 sq ft(Remeber area is in square feet)

Since one gallon covers 400 sq ft then find how many gallons are need to cover 1800
Well 400 sq ft * 4 gallons = 1200 square feet
We are going to run short lets try 5 gallons
well 400 * 5 gallons = 2000 sq ft

So we need atleast 5 gallons of paint.