Úloha ID 274 - 
Jeden metr potahu byl nejdříve zdražen o třetinu a pak byla nová cena ještě navýšena o 12 Kč, nakonec stál 252 Kč.
Jaká byla původní cena za jeden metr potahu?
Správná odpověď je: D
X je původní cena metru potahu.
X+1/3X+12 = 252
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