Question

A room with a floor of length 4m and width 3.2m has a tiled border of width 25cm.Find the area of the border and the remaining area of the floor.

Answer 1

Answer:  Area of the border is 3.35 m² and remaining area of the floor is 9.45 m².

Step-by-step explanation:

Since we have given that

Length of a room = 4 m

Breadth of a room = 3.2 m

So, Area of a room is given by

$Area=Length\times Breadth\\\\Area=4\times 3.2\\\\Area=12.8\ m^2$

Length of inner part is given by

$4-0.25-0.25\\\\=3.5\ m$

Breadth of inner part is given by

$3.2-0.25-0.25\\\\=2.7\ m$

So, Area of inner part is given by

$Area=Length\times breadth\\\\Area=3.5\times 2.7\\\\Area=9.45\ 2m^2$

Area of the border =Area of floor - Area of inner part

$=12.8-9.45\\\\=3.35\ m^2$

Hence, Area of the border is 3.35 m² and remaining area of the floor is 9.45 m².