A rectangular floor has dimensions 35 m×20 m. If the floor is covered with tiles of dimension 25 cm×20 cm, then the number of tiles used is
14,000
First convert 'm' to 'cm' or vice versa so that all measurements are in the same unit.
We know that 1m = 100 cm. Hence 35m = 3500cm and 20m = 2000cm
Number of tiles used =Area of floorArea of 1 tile
=3500×200025×20
=14,000