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  1. The floor of a corridor is 100m long and 3 m wide. Cost of covering the floor with carpet 50 cm wide at the rate of 15 per m is
    1. $ 4500
    2. $ 9000
    3. $ 7500
    4. $ 1900
Correct Option: B

We will need 600 m of 50cm wide carpet to cover the floor of corridor.
∴ Total Cost = 600×15 = 9000.


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