Last year, Jorge planted corn on all of his 60 acres of property.  Typically, corn grown on good soil yields 400 bushels per acre, but in clay-rich soil, the yield is only half as much per acre as in good soil.  One-third of Jorge's 60 acres of land is clay-rich soil and the rest is good soil.  How many bushels of corn did Jorge's land yield last year?
Jorge has 60 * (1/3) = 
<gadget id="calculator">60*(1/3)</gadget>
<output>20</output>
20 acres of clay-rich soil.
He has 60 - 20 = 
<gadget id="calculator">60-20</gadget>
<output>40</output>
40 acres of good soil.
At 400 bushels per acre, his 40 acres of good soil produced 40 * 400 = 
<gadget id="calculator">400*40</gadget>
<output>16_000</output>
16,000 bushels of corn.
If good soil produces 400 bushels per acre, clay-rich soil produces 400 / 2 = 
<gadget id="calculator">400/2</gadget>
<output>200</output>
200 bushels per acre.
At 200 bushels per acre, his 20 acres of clay-rich soil produced 20 * 200 = 
<gadget id="calculator">200*20</gadget>
<output>4_000</output>
4,000 bushels of corn.
Altogether, his land produced 16,000 + 4,000 = 
<gadget id="calculator">16000+4000</gadget>
<output>20_000</output>
20,000 bushels of corn.

<result>20_000</result>