Question

room 9 metre into 7.5 M is covered with tiles size of Style is 25 CM by 20 cm find the cost tiles @ rupees 45 per tile

Answer 1

Area of the room
$= 900 \times 750 = 675000 \: {cm}^{2}$
Area of a tile
$= 25 \times 20 = 500 \: {cm}^{2}$
No. of tiles required
$= \frac{area \: of \: the \: room}{area \: of \: a \: tile}$
$= 675000 \div 500 = 1350$
cost of tiles
$= 1350 \times 45$
= Rs.60750