Waec Model Questions Vol1 2025 Agricultural Science Question 33
Practice objective / multiple choice question 33 from the 2025 Waec Model Questions Vol1 Agricultural Science examination.
A 2‑ha cotton field initially has 1,500 pest insects per hectare. The pest population grows at 20% per week. A pesticide applied at the start of a week kills 60% of the existing population instantly, and its effect lasts exactly two weeks (no further mortality after the initial kill). The farmer applies the pesticide at the beginning of week 1 and again at the beginning of week 4. What is the pest population per hectare at the end of week 6?
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About This Question
This is Waec Model Questions Vol1 2025 Agricultural Science Question 33. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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