How many 8 by 10 inch tiles fit on a 16 by 20 ft floor ?

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  1. 16 ft by 20 ft
    = 320 ft^2
    = 320(144) inches^2
    = 46080 inches^2
    each tile = 80 inches^2

    number of tiles = 46080/80 = 576 tiles.

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