Beth harvested 421 acres of corn with an 8-row combine with a 30- inch-row header. She traveled 4.6 miles per hour and burned 1.4 gallons of diesel fuel per acre. The yield per acre was 142 bushels. The harvesting efficiency average for the field was 0.80. She used a 1,100- bushel semi-trailer to move the corn to storage.
a. How many semitrailer loads were harvested?
b. What is the combine harvesting capacity? Use the following
formula:
HC = (S × W × EFF × Y) ÷ 8:25
Where: HC is the harvesting capacity, bu/hr.
S is the combine speed, mph.
W is the combine harvesting width, ft.
EFF is the harvesting efficiency.
Y is the yield, bu/acre.
c. How many days did it take to harvest the 421 acres of corn, working 12-hour days?
a. 54.3loads
b. 1,267 bu/hr
c. 3.9 days
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