Pharaoh raises taxes


According to the Rashbam and the Radak, Yosef (Joseph) proposed to Pharaoh that they should double the taxes on grain. After the taxes were doubled, Pharaoh began collecting 1/5 of the money from each grain harvest [Bereishis (Genesis) 41:34]. What fraction of each grain harvest was Pharaoh collecting before the increase?


(1/5)/2 = 1/10