Question

A contractor finds that 7 gallons of paint will cover 875 sq ft of wall area. How much wall area could be covered with 35 gallons of paint

Answer 1

The area to be covered by the paint = 875 sq ft.

Number of gallons used = 7 gallons.

Area covered by 1 gallon is calculated as,

`\begin{gathered} Area\text{ covered by 1 gallon = }(875)/(7) \\ Area\text{ covered by 1 gallon = 125 sq ft} \end{gathered}`

Area covered by 35 gallons is calculated as,

`\begin{gathered} Area\text{ covered by 35 gallons = 35 }*\text{ 125 sq ft.} \\ Area\text{ covered by 35 gallons = 4375 sq ft.} \end{gathered}`

Thus area covered by 35 gallons is 4375 sq ft.