Question

6. Square tiles of side 20 cm are to be laid on the floor of a room 10 m by 4.5 m. How many tiles will
be needed? Find the cost of putting the tiles at 131.40 per tile.​

Answer 1

Explanation:

side of square tile - 20

area of square tile - side * side

- 20 *20

- 400cm

length of room - 10 metre

breadth of room. - 4.5 metre

area of room. - length * breadth

- 10 * 4.5

- 4500cm

- 4500 / 400

we need total tiles - 11.25

cost of 1 tile. - 131.40

- 11.25 * 131.40

cost of total tiles - 1478.25

Answer 2

Answer:

Dimnesions of the roos is 10m x 4.5m = 1000cm x 450 cm

Area of the room = 1000 x 450 cm2 = 450000 cm2

Length of each side of the square tile = 20 cm

Area of tile = 20 x 20 cm2 = 400 cm2  

No. of tiles to be laid = 450000/400 = 1125

Cost of one tile = Rs. 131.40

Total cost = 1125 x 131.40 = Rs. 147825

Explanation: