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A certain type of tile costs $50 per square meter.
If the actual tiles are square tiles with sides 20 cm,
How much does one tile cost?

  • Geometry -

    20cm * 20cm * $50/m^2 * m^2/(100cm)^2
    = 20*20*50/100*100 = $2 per tile

    makes sense, since 20cm = 1/5 m, so there are 25 tiles/m^2

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