The thresher of a wheat combine harvester has an optimal throughput capacity of $2400 \mathrm{~kg}$ (crop) per hour. The harvester has a forward velocity of $4.5 \mathrm{~km} \mathrm{~h}^{-1}$. Sample tests have revealed that the yield of crop in the field is $3000 \mathrm{~kg}$ (grain) per ha. Grain to straw ratio is 60: 40 . If the above throughput is to be maintained, the width of cut of the harvester in $\mathrm{m}$, neglecting turning losses, is

(A) 0.71

(B) 1.07

(C) 1.78

(D) 2.96

The thresher of a wheat combine harvester has an optimal throughput capacity of $2400 \mathrm{~kg}$ (crop) per hour. The harvester has a forward velocity of $4.5 \mathrm{~km} \mathrm{~h}^{-1}$. Sample tests have revealed that the yield of crop in the field is $3000 \mathrm{~kg}$ (grain) per ha. Grain to straw ratio is 60: 40 . If the above throughput is to be maintained, the width of cut of the harvester in $\mathrm{m}$, neglecting turning losses, is

(A) 0.71

(B) 1.07

(C) 1.78

(D) 2.96

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