Compute the following problem

Problem- A distillation column with a reboiler and condenser is used to separate 100 mol/min of equimolar mixture benzene (B) and toluene (T). The overhead product contains 95% B and goes to a total condenser (all vapor converted to liquid) and is then equally split into reflux and distillate. The distillate contains 90% of the benzene fed to the column. The liquid from the bottom of the column goes to a partial reboiler that vaporizes 50% of the liquid. The vapor is returned to the bottom of the column and the liquid is taken as a bottoms product. The liquid and vapor are in thermodynamic equilibrium as expressed by yB/yT = 2 xB/xT Look up "distillation column reboilers" and "distillation column condensers" in Google and write a one paragraph description of the process in Word. Insert a process flow diagram and images of industrial reboilers and condensers from Google images.

Part 1- Use the systematic procedure to determine all unknown flow rates and compositions.

I need help to determine all unknown flow rates.