Question

A room is 4 m long and 3 m 50 cm wide. How many square meters of carpet are needed to cover the floor of the room?
[2 Marks]

Answer 1

Length of the given room = length of the floor = 4 m.
We know,
$1m=100cm1cm=\frac{1}{100}m1cm=0.01m$

Breadth of room = breadth of the floor = 3 m 50 cm = 3.50 m
[1 Mark]

Since Area f the carpet needed to cover the floor of the room = Area of the floor of the room
= length of the floor $\times$ breadth of the floor
= $4m\times 3.50m=14m^2$.

Hence, 14 sq meters of carpet is needed to cover the floor of the room.
[1 Mark]