Question

the number of square tiles of side 15 centimetres required for flooring a room of size 3.6meter X 4.5meter , will be

Answer 1

24×30
= 720 tiles are required

Answer 2

l=3.6m×100cm = 360cm
b=4.5×100cm=450cm
no. of tiles = area of floor / area of tiles
= 360×450/15×15
=720 tiles