Consider a tank used in certain hydrodynamic experiments. After one experiment the tank contains  liters of a dye solution with a...

Consider a tank used in certain hydrodynamic experiments. After one experiment the tank contains  liters of a dye solution with a concentration of  g/liter. To prepare for the next experiment, the tank is to be rinsed with fresh water flowing in at a rate of  liters/min, the well-stirred solution flowing out at the same rate.

Find the time  that will elapse before the concentration of dye in the tank reaches  of its original value.

Round your answer to two decimal places.