Question

A floor of the room 12 m long and 6 m wide is to be covered by square tiles. If each square tile is 3 m,
find the number of tiles required to cover the floor. Also, find the cost of tiling at the rate of ₹7per tile.

Answer 1

Answer:

area of rectangle

l×b

12×6= 72

area of square

s×s

3×3=9

no. of tiles required

area of rectangle ÷ area of square

72/9 = 8 tiles

cost of tiles = 8×7 = 56Rs

Answer 2

Answer:

A floor of the room 12 m long and 6 m wide is to be covered by square tiles. If each square tile is 3 m, the number of tiles required to cover the floor is 8, and the cost of tiling at the rate of ₹7per tile is 56 rupees

Step-by-step explanation:

The length of the floor $l=12m$

the breadth of the floor $b=6m$

since the floor is a rectangle the total area of the floor is $A=l*b$

⇒ $A=12*6=72cm^{2}$

the side of the square tile $a=3m$

since the tile is a square the area of one tile $A=a^{2}$

⇒$A=3*3=9cm^{2}$

now the number of tiles is given as the area of the floor divided by the area of one tile

⇒  $\frac{72}{9}=8$

the cost of one tile is $7rs/-$

now the total cost of the tile is the product of the total number of tiles and the price of one tile

⇒$8*7=56rs/-$