tile is square of side 20 cm how many such tiles would it be required to cover the floor of the square of side 30 m
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Given side of a square tile=20cm
Side of a suare floor=30m=3000cm
No. of tiles req. to cover the floor=
Area of floor/Area of one tile
Area of floor= 3000*3000cm.sq.
=9000000cm.sq.
Area of one tile=20*20cm.sq.
=400cm.sq.
No. of tiles req. to cover the floor=
9000000cm.sq. / 400cm.sq.
=22500Ans
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