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35. A floor is 121 cm long and 99 cm wide how many square tiles of side 11 cm will be neededfloor?​

Answer»

Answer :-

  • Number of tiles required to tile the floor is 99 tiles.

Step-by-step explanation:

To Find :-

  • Number of square tiles required to tile the floor.

Solution:

Given,

A floor is 121cm long and 99cm wide.

  • Length of the floor = 121m
  • BREADTH of the floor = 99m

Therefore, Area of the floor is,

=> Length × Breadth

=> 121M × 99m

=> ( 121 × 99 ) m²

=> 11979m²

Hence The area of the floor is 11979m².

Also given,

  • Side of a square tile = 11cm

Therefore, Area of one tile is,

=> ( side )²

=> ( 11M )²

=> 121m²

Hence, The area of a square tile is 121m².

According the QUESTION,

  • Number of tiles required

=> Area of floor ÷ Area of a square tile

=> 11979 ÷ 121

=> 99

Therefore, Number of tiles required to tile the floor is 99 tiles.


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