The floor of a room is of dimension 9m *12 m. Square tiles of side 12cm have to be arranged on the floor . How many tiles are required to cover the floor.
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Area of floor = Area of rectangle
= ( 12 × 9 ) m²
= 108 m²
= 1,080,000 cm²
Area of 1 tile = Area of square
= ( 12 )² cm²
= 144 cm²
∴ No. of tiles
= Area of floor / Area of 1 tile
= 1,080,000 cm² / 144 cm²
= 1,080,000 / 144
= 7,500
Hence, 7500 tiles are required to cover the floor.
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= ( 12 × 9 ) m²
= 108 m²
= 1,080,000 cm²
Area of 1 tile = Area of square
= ( 12 )² cm²
= 144 cm²
∴ No. of tiles
= Area of floor / Area of 1 tile
= 1,080,000 cm² / 144 cm²
= 1,080,000 / 144
= 7,500
Hence, 7500 tiles are required to cover the floor.
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