Question

Rahul wants to cover the floor of the room of length 8m and 1.5m by square tiles. If each square tile is on the side 20cm, find the number of tiles required to cover the floor of her room.

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Answer 1

Answer :-

Given :-

• Length of square room = 8 m
• Breadth of square room = 1.5 m
• Side of square tile = 20 cm = 0.2 m

To Find :-

• Number of tiles required to cover the floor of her room.

Solution :-

We know that,

Area of rectangle = Length × Breadth

Calculating the Area of room and square tiles :-

→ Area of room = 8 × 1.5

→ Area of room = 12 m²

→ Area of square tiles = 0.2 × 0.2

→ Area of square tiles = 0.04 m²

Number of tiles required = Area of room / Area of each square tiles

= 12 / 0.04

= 300

Hence, number of tiles required to cover the floor of her room are 300 tiles.

Answer 2

Given :-

Rahul wants to cover the floor of the room of length 8m and 1.5m by square tiles. If each square tile is on the side 20cm,

To Find :-

The  number of tiles required to cover the floor of her room.

Solution :-

We know that

1 m = 100 cm

8 m = 8  × 100 = 800 cm

1.5 m = 1.5 × 100 = 150 cm

For area of floor

$\mid\pmb{Area = length\times breadth}\mid$

Area = 800 × 150

Area = 120000 cm²

For tile

$\mid\pmb{Area = side^2}\mid$

Area = 20²

Area = 400 cm²

No. of tiles required = 120000/400

No. of tiles required = 300 tiles