A rafinary has available two cruale oils that hove the gields shown in the following table. Because of equipment and storage limitations, production of gasoline, kerosene and fuel oil must be limited as also shown in this table. The profit on processing crude #1 is $1/6b ) and crude #2 it is $0,70/6b/ The refinery requires daily feed rates of two crude oils to achieve maximum protits. Write the primal problem and the dual problem describing the process