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  1. How many tiles, each 4 decimetre square, will be required to cover the floor of a room 8 m long and 6 m broad ?
    1. 200
    2. 260
    3. 280
    4. 300
Correct Option: D

Area of the floor = 8 × 6 = 48 sq. m. = 4800 sq. dm.
Area of a square tile = 4 × 4 = 16 sq. dm

∴ Number of tiles =
4800
 = 300
16


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