Question

The floor of a hall is 20m long and 15m wide find the number of tiles required to cover the floor if the dimension of one tile is 20 cm multiply 10m

Answer 1

Area of the floor = Length × Breadth
=> 20 × 15

= 300 m²

Area of one tile = {20 × 10} cm

=> 200 cm²

=> 200/10000 m²

=> 1/50 m²

Now, number of times required = area of floor/area of tile

=> 300 ÷ (1/50)

= 300 × 50

=> 15,000 Tiles

Answer 2

• Area of the floor :-

= Length × Breadth

= 20 × 15

= 300 m²

• Area of one tile = 20 × 10 cm

= 200 cm²

= 200 ÷ 10000  m²

= 1 ÷ 50 m²

Since :-

Number of times required = Area of floor ÷ Area of tile

= 300 ÷ (1 ÷ 50)

= 300 × 50

= 15000 Tiles