The separation of two immiscible liquids can be accomplished byallowing the mixture to naturally separate (usually by flowing themixture slowly through a horizonal vessel), and then pulling liquidfrom the top

and bottom layers. A continuous process is used to separate a mixture of hexane and methyl alcohol (methanol). The separation produces an outlet of pure hexane that flows at a rate of 10 gal/min and another outlet of pure methanol that flows at a rate of 6.5gal/min. How many inlet streams enter the vessel?