Question

9. 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

Answer:

1500 tiles and Rs 3750

Step-by-step explanation:

Let us see what we are given in the question:

side of square tile =12cm

Length of wall=7.2m=720cm(we will convert everything into cm)

Width of the wall=3m=300cm

In order to find the number of tiles, first we need to find the area of wall and area of 1 tile.

Area of wall=Length ×breadth

=720×300 cm²

=216000cm²

Area of 1 tile=(side)²

=(12)²

=144cm²

Now, we need to find the number of tiles

Number of tiles required= Area of wall/ area of 1 til=216000/144 tiles

=1500 tiles

Now, we will find the total cost of tiling

Cost of 1 tile= Rs 2.50

Cost of 1500 tiles =(1500×2.50)

=Rs 3750

Hence, the total number of tiles required for tiling the wall is 1500 tiles and the total cost of tiling the wall is Rs 3750