Neco 2025 Agricultural Science Question 16
Practice objective / multiple choice question 16 from the 2025 Neco Agricultural Science examination.
A farmer uses a plough and a harrow. The plough can till \(0.8\) ha per hour when pulled by a tractor. The harrow can prepare \(0.5\) ha per hour when used after ploughing. However, when both are used simultaneously (plough attached ahead of the harrow), the combined effective area covered per hour is reduced by 15% of the sum of their individual rates. The farmer needs to till and prepare a \(12\) ha field. He will use the combined setup until the remaining area is less than what the plough alone can cover in one hour, then finish with the plough alone. How many total hours are required? Give your answer to two decimal places.
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About This Question
This is Neco 2025 Agricultural Science Question 16. It is one of the objective questions from the 2025 Neco Agricultural Science examination.
Difficulty level: Medium .
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