Neco 2023 Agricultural Science Question 16
Practice objective / multiple choice question 16 from the 2023 Neco Agricultural Science examination.
In a herd of cattle, 4 were initially showing clinical signs of a contagious disease. After 20 days, the number of infected cattle increased to 48. Assuming the infection follows an exponential growth model \( N = N_0 e^{rt} \), where \( N_0 \) is the initial number infected, \( r \) is the daily infection rate and \( t \) is time in days, determine (a) the value of \( r \) (to three decimal places) and (b) the expected number of infected cattle after 30 days. Round the final number to the nearest whole animal.
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About This Question
This is Neco 2023 Agricultural Science Question 16. It is one of the objective questions from the 2023 Neco Agricultural Science examination.
Difficulty level: Medium .
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