Farm A had an average output of 300 kgs of wheat per acre. Farm B had an average output of 350 kgs of wheat per acre. It is known that Farm B's area is 20 acres less than Farm A's. It is also known that Farm B in total harvested 2000 kgs of wheat more than Farm A. What is the area of Farm A? Choose the correct choice from the following answers:
A) 130 acres
B) 135 acres
C) 145 acres
D) 160 acres
E) 180 acres
The area of Farm A = x acres;   The area of Farm B = x-20 acres.   Total output of Farm A = 300x kgs;   Total output of Farm B = 350(x-20) kgs.   Farm B in total harvested 2000 kgs of wheat more than Farm A: 300x+2000=350(x-20) --&gt; x=180 acres.   Answer: 180 acres.
<result>E</result>
Farm A had an average output of 300 kgs of wheat per acre. Farm B had an average output of 350 kgs of wheat per acre. It is known that Farm B's area is 20 acres less than Farm A's. It is also known that Farm B in total harvested 2000 kgs of wheat more than Farm A. What is the area of Farm A?