A tile is a square of side 20cm,how many suh tiles would be requires to cover the floor of a squarebathroom of side 3m.

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60 SUCH TILES WE REQUIRE TO  COVER  THE    FLOOR

-2+45-43[43-45]-34+32=

given:
length of side of tile = 20 cm
therefore, area of tile = (20*20) sq.cm
                                   = 400 sq.cm
length of side of bathroom =3m
                                           =300 cm
therefore, area of bathroom = ( 300*300) sq.cm
                                              =90,000 sq.cm
therefore, no.of tiles required = area of bathroom/area of tile
                                                =30090000/1300
                                                 =300
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