Neco Model Questions Vol1 2025 Agricultural Science Question 31
Practice objective / multiple choice question 31 from the 2025 Neco Model Questions Vol1 Agricultural Science examination.
A flock of 250 sheep is affected by a disease that initially infects 10 animals. The disease has a basic reproduction number \(R_0 = 3\). After the second week the farmer imposes a quarantine that reduces the effective contact rate by 40\%, so the effective reproduction number becomes \(R = 1.8\). The disease spreads in discrete weekly generations, and an infected animal dies two weeks after it becomes infected. The case‑fatality rate is 30 % (i.e., 30 % of infected animals die after the two‑week period). Assuming no other deaths, calculate the total number of sheep that will have died by the end of week 5.
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This is Neco Model Questions Vol1 2025 Agricultural Science Question 31. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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