Question

A room is x meters long, y meters broad, and z meters high; find how many square meters of carpet will be required for the floor and how many square meters of paper for the walls?

• A. xy and 2xy + 2yz
• B. xy and 2xz + 2yz
• C. xy and 2xy
• D. xy and 2xy + 2xz

Answer 1

The correct option is B xy and 2xz + 2yz

$Length=x,breadth=y$
Area of the floor $=xy{m}^2$
Area of four walls $=2h(l+b)=2z(x+y)=2zx+2yz$