Question

5. How many square tiles of side 9cm will be needed to fit in a square floor of a bathroom of side 720cm
Find the cost of tiling at the rate of rs 7.50 ​

Answer 1

Answer:

600 rupees

Step-by-step explanation:

720/9=80

cost of 1 tile =7.50

cost of 80 tiles=80x7.50

=600

Answer 2

Answer:₹48,000

Step-by-step explanation:

Floor of bathroom                                      Square tile

side = 720cm                                          side= 9cm

Area = (side)^2 = (720)^2                       Area= (side)^2 = (9)^2 = 81

=720x720 = 518400 cm^2

Number of tiles require = Area of the floor / Area of one tile

= 518400/81  = 6400

∴ Total cost = number of tiles x ₹7.50

= 6400 x 7.50

= ₹48,000