Neco 2021 Geography Question 1
Practice objective / multiple choice question 1 from the 2021 Neco Geography examination.
A farmer plans to apply a mixture of two fertilizers, A and B, to meet the minimum nutrient requirements for a 5‑ha field. Fertilizer A contains \(20\%\) N, \(10\%\) P_{2}O_{5} and \(5\%\) K_{2}O by weight; fertilizer B contains \(12\%\) N, \(18\%\) P_{2}O_{5} and \(8\%\) K_{2}O. The field requires at least \(15\) kg of nitrogen, \(12\) kg of P_{2}O_{5} and \(5\) kg of K_{2}O. Fertilizer A costs \(\text{₦}150\) per kg and fertilizer B costs \(\text{₦}120\) per kg. Determine the quantities of fertilizers A and B (in kg) that will satisfy the nutrient requirements at the lowest total cost. Show all steps.
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About This Question
This is Neco 2021 Geography Question 1. It is one of the objective questions from the 2021 Neco Geography examination.
Difficulty level: Hard .
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