Question

A floor 10 m long and 7 m broad is ti he paved with square tiles of side .5 m. Find the number of tiles required

Answer 1

Area of floor = 10 * 7 = 70 m^2.
Area of each square tile = 0.5 * 0.5 = 0.25 m^2
Now,
No of tiles = 70 / 0.25 = 280.

Answer 2

Length of floor =10m
Breadth of floor =7m
Area of floor =length ×breadth
=10×7
=70m²
Side of tile=5m
Area of tile=side×side
=5×5
=25m²
No of tiles required =area of floor ÷area of tile
=70÷25
=2.8