11. A room is 12 m long and 10 m board. How many rectangular tiles of 50 cm
x 24 cm size are required to cover the floor of the room? Find the cost
flooring the tiles also, if the cost of one tile is 125?
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Answer:
Area of room=1200cm×1000cm
=1200000cm²
Area of tile =24cm×50cm
= 1200cm²
Required tile=1200000cm²÷1200cm²
= 1000tiles
Cost = 1000×125
=Rs.125000
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I did it in a book because it is easy to in a book
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