Aruna wants to cover floor of a room with 3 metre wide and 4 metre long was quite as if each square tile is of side 20 cm find the number of tiles required to cover the floor of the room
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area of the floor is =3×4
=12m^2. ----- 1
area of till=20×20=400cm^2
=400÷100
=4m^2
therefore number of till required= 12÷4
=3 tiles
=12m^2. ----- 1
area of till=20×20=400cm^2
=400÷100
=4m^2
therefore number of till required= 12÷4
=3 tiles
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