In a single-stage leaching of soybean oil from flaked soybeans with hexane, 100 kg soybeans containing 20 wt % oil is leached with 100 kg of fresh hexane solvent. The value of N for the slurry underflow is essentially constant at 1.5 kg insoluble solid/kg solution retained. Calculate the amounts and compositions of the underflow E1 and the overflow slurry R1 leaving the stage