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Calculate the total time required to harvest 2.5 hectares of grass by means of a 2 metre mower being operated at 4 km/hr. (Field efficiency=80%)

(a) 2.5 hrs

(b) 1.2 hrs

(c) 3.9 hrs

(d) 7 hrs

The question was asked in quiz.

Origin of the question is Harvesting Equipments topic in chapter Harvesting Equipments of Farm Machinery

1 Answer

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Best answer
Right choice is (c) 3.9 hrs

Easiest explanation: Theoretical area covered/hr = 2*4*1000 m^2

Actual area covered/hr = \(\frac{2*4*1000*80}{100}\)m^2 = \(\frac{(2*4*1000*80)}{100*1000}\) ha

Time required for 2.5 ha = 2.5/0.64 = 3.9 hrs

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