Question

a square tile is having side of length 15cm .how many such tiles would be required to cover the square floor of a bathroom of side 3 m.

Answer 1

area of one tile= 15x15 =225cm^2
total area=300x300= 90000 cm^2
no of tiles =90000/225= 400 tiles

Answer 2

Area of tile
$= {a}^{2} \\ \\ = {15}^{2} \\ \\ \\ = 225 {cm}^{2}$


$area \: of \: bathroom = {a}^{2} \\ \\ = {300}^{2} \\ \\ \\ = 90000 {cm}^{2}$

$no \: of \: tiles = \frac{area \: of \: floor}{area \: of \: one \: tile} \\ \\ \\ = \frac{90000}{225} \\ \\ \\ = 400tiles \\ \\ \\ Thank You. Hope this will be helpful for you.$



Thank You.



Hope this will be helpful for you.