Question

A tile is a square of a side 20 cm. How many such tiles would be required to cover the floor of a square bathroom of side 3 m ?

Answer 1

Area Of Square Bathroom=3m=300^2=90000cm^2

Area of Tile=20^2=400cm^2

No. of tiles=90000/400=225 Tiles

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Answer 2

area of tile =.04m^2
area of batheroom=9m^2
no oftiles required=9/.04=225tiles