Question

A room is 4 m long and 3 m 50 cm wide. How many square metres of carpet is needed to cover the floor of the room?

Answer 1

Length of room = 4 m.

$1m=100cm1cm=\frac{1}{100}m1cm=0.01m$

Breadth of room = 3 m 50 cm = 3.50 m

Area of carpet = length$\times$breadth.

= $4m\times 3.50m=14m^2$.