Question

square tiles of side 20cm are to be laid on the floor of a room 10 m by 4.5 M how many times will the needed find the cost of putting the tiles at 13 1.40 for tiles

Answer 1

area of room = 10 m × 4.5 m
= 45 m2 = 45 x 10000 = 450000cm2

area of square tile = 20 cm × 20 cm
= 400 cm2

no. of tiles = area of floor÷ area of 1 tile
= 450000 ÷ 400
=1125 tiles

cost of 1 tile = 131.40
so cost for 1125 tile
= 1125× 131.40
=147825 rs