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1. |
Calculate the seed rate/hectare of a 7*17 cm seed drill, whose main drive wheel is 124 cm diameter and total weight of grain collected in 20 revolutions in 0.423 kg. |
A. | 45.58 kg |
B. | 54.34 kg |
C. | 90 kg |
D. | 23.78 kg |
Answer» B. 54.34 kg | |