Neco 2025 Geography Question 48
Practice objective / multiple choice question 48 from the 2025 Neco Geography examination.
In a farming region the yield \(Y\) (tonnes per hectare) of a staple crop is modelled by the quadratic relation \(Y = 2 + 0.05N + 0.02R - 0.001N^{2}\), where \(N\) is the amount of nitrogen fertilizer applied (kg ha\(^{-1}\)) and \(R\) is the excess rainfall above 800 mm (mm). The area receives 950 mm of rainfall in the season. The farmer wishes to obtain at least 5.5 t ha\(^{-1}\) yield but cannot spend more than ₦6 000 per hectare on fertilizer; each kilogram of nitrogen costs ₦120. What is the minimum integer amount of nitrogen (kg ha\(^{-1}\)) the farmer should apply to meet the target yield within the budget?
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About This Question
This is Neco 2025 Geography Question 48. It is one of the objective questions from the 2025 Neco Geography examination.
Difficulty level: Hard .
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