Question

16. Find the number of square tiles of side
12 cm, required for flooring a room of size
4 mx 5 m, will be
(a) 1388
(b) 1400
(c) 1500 (d) 1600​

Answer 1

Sides of the floor =5m and 3m

Length=500cm and Breadth300cm [ 1m =100cm]

Area of the floor =lb=500×300=150000cm

2

.

Square tile : Side =25cm

∴ Area of a tile =25×25=625cm

2

∴ No. of tiles required = Area of the floor ÷ Area of a tile =150000÷625=240.

∴240 square tiles are required to cover the room.