Keeping track of information with a table

One thousand kilograms per hour of a mixture containing equal parts by mass of ethanol and water is distilled. Product streams leave the top and the bottom of the distillation column. The flowrate of the bottom stream is measured and found to be 673 kg/h, and the overhead stream is analyzed and found to contain 96 wt% ethanol. Find the flowrates of all components in all streams.

We can find the flowrates of water and ethanol in the overhead stream from the information given in the problem statement. Generally,

F_{overhead,water} = F_{overhead,total} * x_{overhead,water} = 327*0.04 = 13.08

F_{overhead,ethanol} = F_{overhead,total} * x_{overhead,ethanol} = 327*0.96 = 313.92

Let's fill that information into the table:

Streams\mass flow rate	Total	Ethanol	Water
Feed	1000	500	500
Overhead	327	313.92	13.08
Bottoms	673	F_{bottoms,ethanol}	F_{bottoms,water}

Now we're down to the point where we can write two mass balances to solve the rest of the problem. Which mass balances do you think are the ones we can use from the list below to fill in the rest of the table?

F_feed,total = F_{overhead,total} + F_{bottoms,total}
F_feed,ethanol = F_{overhead,ethanol} + F_{bottoms,ethanol}
F_feed,water = F_{overhead,water} + F_{bottoms,water}
F_feed,total = F_{overhead,water} + F_{bottoms,ethanol}
F_feed,total = F_feed,water + F_feed,ethanol