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     EduGorilla 
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    The length and the breadth of the Roof of a room is 40 feet and 20 feet respectively. Square tiles of 2 feet dimension having three different colours are placed on the floor. The first row of tiles on all sides is of black color, out of the remaining area, 1/4th is of white color and the remaining is of grey colour. How many white colored tiles are there?

    Options :-

    1. 20
    2. 22
    3. 32
    4. 24
    5. Other than the given options
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