Question

Sabina wants to cover the floor of her room whose length is 4 m and breadth is 3 m by square tiles. If each square tile is of side 20 cm,

Answer 1

Length of the room = 4 m = 400 cm 

Breadth of the room = 3 m = 300 cm 

Area of the floor of the room = Length × Breadth

= 400 × 300 sq cm = 120000 sq cm 

Side of the square tile = 20 cm 

Area of the square tile = Side × Side = 20 × 20 sq cm 

= 400 sq cm 

So, number of tiles required = Area of the floor/Area of one tile = 120000/400 = 300

Answer 2

$\Bold{Hay mate its ur answer}$

$\italic{according to the question we know that }$ L => 4m , B => 3m

Let changed it in CM then L = 400cm, B =300cm

$\Bold{Area of the floor = L*B = 120000}$

$\italic{We know that area of square tile is 20}$ $\Bold{so, area of tile = 400}$

$\bold{area of tiles = 120000 {/} 400 = 300}$

So, your answer is $\box{300}$

Regards: $\color{red}{Swarnimkumar21}$