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Problem 2 Two 200-gal tanks are connected in series as shown below: 10 gal/min tank 1 tank 2 6 gal/min Both tanks initially contain 100 gal of water. The feed to the first tank is pure water at the rate of 10 gal/min; the flow rate from tank 1 to tank 2 is 6 gal/min. Both flow rates are constant during the process. a) Which tank fills first? b) How long does it take up to the point that one tank is completely full? c) What is the mass in each tank when one tank is full