Gce Model Questions Vol1 2017 Agricultural Science Question 21
Practice objective / multiple choice question 21 from the 2017 Gce Model Questions Vol1 Agricultural Science examination.
A farmer needs to till a \(5\) ha field using a tractor‑mounted rotavator. The operator can choose one of three speeds:\n\n- \(8\) km h\(^{-1}\): tillage rate \(0.7\) ha h\(^{-1}\), fuel consumption \(5\) L h\(^{-1}\)\n- \(10\) km h\(^{-1}\): tillage rate \(0.8\) ha h\(^{-1}\), fuel consumption \(6\) L h\(^{-1}\)\n- \(12\) km h\(^{-1}\): tillage rate \(0.85\) ha h\(^{-1}\), fuel consumption \(8\) L h\(^{-1}\)\n\nLabour cost is ₦150 per hour and fuel costs ₦200 per litre. Which speed gives the lowest total cost (labour + fuel) for completing the whole field? Give the total cost in naira, rounded to the nearest naira.
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About This Question
This is Gce Model Questions Vol1 2017 Agricultural Science Question 21. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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