Available Data:

1. Two-row harvester working in 1-m rows

2. Travels 25 m in 30 s

3. Harvests 200 kg in 50 s

4. Density of yield is 800 kg/m3

5. Time loss, 30%

6. Works 7 hr/day

7. Tractor uses 12 L/hr of fuel

8. Fuel costs 20/L

What is the speed of the harvester in kilometers per hour? (3)

3. What is the theoretical field capacity of the harvester in hectares per hour? (4)

4. How many hectares will this harvester process in one day? (2)

(% is a unitless ratio times 100)

5. How many tonnes are harvested in 1km of harvester travel? (3)

6. What is the fuel consumption of the tractor in kilometers/litre of no-stop harvesting? (3)

7. What is the yield of the field in tonnes per hectare? (4)

8. What is the fuel cost per tonne harvested, assuming no time loss? (4)

9. What is the fuel cost per hectare, assuming no time loss? (5)