SOLUTION: if you have a room that is 4m x 5m and you need to replace the ceiling tiles, assuming that it is a perfect fit, and the tiles are 50cm x 50cm how many tiles do you need?

Question 855641: if you have a room that is 4m x 5m and you need to replace the ceiling tiles, assuming that it is a perfect fit, and the tiles are 50cm x 50cm how many tiles do you need?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
if you have a room that is 4m x 5m and you need to replace the ceiling tiles, assuming that it is a perfect fit, and the tiles are 50cm x 50cm how many tiles do you need?
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4m = 400 cm
5m = 500 cm
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Area of ceiling 400*500 = 200000 cm^2
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Area of a tile = 50^2 = 2500 cm^2
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# of tile needed = 200000/2500 = 80
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Cheers,
Stan H.
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