Question

A room measuring 7 m by 6m is to be covered by square tiles of side 21cm.Find the number of tiles required to cover the floor.If the cost of one tile is ru.40,find the total cost of tiles?​

Answer 1

Given,

• Length of Room = 7m = 700cm
• Breadth of Room = 6m = 600cm
• Side of Square Tiles = 21cm
• The Cost Of Tiles ₹40 per Tiles.

To Find,

• The Total Number of Tiles.
• The Total Cost of Tiling the Room.

Solution,

Length of Room = 700cm

Breadth of Room = 600cm

Side of Square Tiles = 21cm

Number of Tiles = Area of Room / Area of Tile

→ Number of Tiles

= (Length × Breadth)/(Side × Side)

→ Number of Tiles

= (700cm × 600cm)/(21cm × 21cm)

→ Number of Tiles = 952 Tiles (approx.)

The Cost of Tiles = ₹40/Tile

→ The Total Cost of Tiles = 952 × ₹40/Tile

The Total Cost of Tiling is ₹38080

Required Answer,

The Total Cost of Tiling is ₹38080.

Answer 2

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Solution:

Side of square = 250 m

Perimeter of square = 4 x side

= 4 x 250 = 1000 m

Since, cost of fencing of per meter = Rs. 20

Therefore, cost of fencing of 1000 meters = 20 x 1000 = Rs. 20,000