Waec Model Questions Vol1 2020 Agricultural Science Question 45
Practice objective / multiple choice question 45 from the 2020 Waec Model Questions Vol1 Agricultural Science examination.
An extension officer plans five demonstration plots to promote a new high‑yielding cassava variety. Each demonstration costs ₦12 000 (planting material and labour). Each demonstration influences four neighbouring farmers to adopt the variety. Adoption probability depends on distance: 80 % for farmers within 2 km, 50 % for those 2-5 km away, and 20 % beyond 5 km. The farmer density is 30 farmers km⁻² uniformly. Demonstration plots can be placed far enough apart that their 5 km coverage circles do not overlap. Each adopter pays ₦8 000 for planting material (no labour cost). Compute the expected net revenue (total payments from adopters minus demonstration costs) for the optimal placement of the five plots.
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About This Question
This is Waec Model Questions Vol1 2020 Agricultural Science Question 45. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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