Question

Find the number of square tiles of side
12 cm required for tiling a wall of
dimension 7.2 m x 3 m. Also, find the
cost of the tiling if one tile costs * 2.50.​

Answer 1

GIVEN:

• Side of Square=12cm
• Dimensions of Wall is 7.2m×3m
• Cost of one tile=Rs.2.5

TO FIND:

• No. of tiles.
• Total cost of tiles.

SOLUTION:

◈Area of Square tile =(side)²

=12×12=144cm²

=0.144m²

◈Area of Wall=l×b

=7.2×3m²

=21.6m²

$\sf No. of tiles = \frac{area \: of \: wall}{area \: of \: tile}$

=21.6/0.144

=150 tiles

Cost=150×2.5

=Rs.375

Answer 2

Answer :-

• Number of Tiles Required = 1500 Tiles
• Total Cost Tiling = 3750 Rs

Given :-

• Side of Square Tile = 12 cm
• Length of Wall = 7.2 m = 720 cm
• Width of Wall = 3 m = 300 cm

To Find :-

• Number of Tiles Required = ?
• Total Cost Tiling = ?

Explanation :-  

 

 In Order to Find the Number of tiles, First we need to find the Area of wall and Area of 1 Tile.

 

$\blue { \boxed { \bf \bigstar \: Area \: of \: Wall = Length \times Width \: \bigstar }}$

$\rm : \: \implies 720 \times 300 \: cm^2$

$\bf : \: \implies 216000 \: cm^2 \: \: \star$

$\blue { \boxed { \bf \bigstar \: Area \: of \: 1 \: Tile = (Side)^2 \: \bigstar }}$

$\rm : \: \implies (12)^2 \: cm^2$

$\bf : \: \implies 144 \: cm^2 \: \: \star$

‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒

Now, we will find the Number of Tiles

$\green { \boxed { \bf \bigstar \: No. \: of \: Tiles \: Required = \dfrac{Area \: of \: Wall}{Area \: of \: 1 \: Tile} \: \bigstar }}$

$\rm : \: \implies \dfrac{216000}{144} \: \: \: \: Tiles$

$\red { \underline { \boxed { \bf : \: \implies 1500 \: Tiles }}}$

‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒

Now, we will find the Total Cost of Tiling

$\rm : \: \implies Cost \: of \: 1 \: Tile = \bold{2.50 \: R_S}$

$\rm : \: \implies Cost \: of \: 1500 \: Tile,$

          $\rm = (1500 \times 2.50) \: R_S$

         $\red { \underline { \boxed { \bf = 3750 \: R_S }}}$

‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒

Hence, the Total Tiles Required for tiling the wall is 1500 Tiles and Total Cost of tiling the wall is 3750 Rs.