A room is 4 m long and 3 m 50 cm wide. How many square meters of carpet is needed to cover the floor of the room?
Length of room = 4 m.
1m=100 cm
1cm=1100
1cm=0.01 m
Breadth of room = 3 m 50 cm = 3.50 m
Area of carpet = length×\times×breadth.
=4×3.50 m2=14 m2