Question

a square room of side 12 m is to be paved with square tiles of sides 50cm. what is the number of tiles required to pave the floor of the room.

Answer 1

area of room = 12*12
=144 m^2
area of tile= 0.5*0.5
=0.25 m^2
no of tiles = 144/0.25
=576

Answer 2

Area of room=(12×12)
=144 m (sq) = 1440000 cm (sq)
Area of tiles =(50×50)
=2500 cm (sq)

No. of tiles needed = Area of room / Area if tiles
= 1440000/2500
= 576