Question

How many square tiles of side 9 cm will be needed to fit in a square floor of a bathroom of side 720cm ?find the cost of tilling at the rate of ₹7.50 per file
Give me formula also

Answer 1

area of square=720*720
Area of tile=9*9
No. of tile=(720*720)/(9*9)=80*80=6400
Cost of tile=6400*7.5=48000

Answer 2

The cost of covering the bathroom floor with tiles would be Rs 48000

1) The number of tiles can be known by calculating the area of the bathroom and then dividing it by area of tile.

2) Area of tile = 9*9 = 81 cm²

3) Area of the bathroom is 720*720 = 518400 cm²

4) Hence, the number of tiles required are 518400/81 = 6400

5) The cost of tiling the complete bathroom would be 7.50*6400 = 48000