During the production of sugar crystals from sugar cane, raw sugar cane juice is sent to a series of three evaporators to remove water. The sugar cane juice, which is 85 wt% water, is fed to the first evaporator at 5,000 lbm/h. Equal amounts of water are removed in each evaporator. The concentrated juice out of the last evaporator is 40 wt% water. Calculate: 

a. The flow rate of the concentrated juice out of the last evaporator. 

b. The amount of water removed in each evaporator. 

c. The concentration of water in the juice fed to the second evaporator.