Question

bobwants to cover a room 3 metre 50 cm wide and 6 cm long by square tiles if each square tile is of side 0.5m find the number of square tiles needed to cover the floor

Answer 1

72 square tiles required.

Answer 2

Total area = 3.5*6=21m^2
Total tile area = 0.5*0.5=0.25m^2
Tile = total area/ tile area= 21/0.25=2100/25=420/5=84tiles