Waec Model Questions Vol1 2025 Agricultural Science Question 16

Practice objective / multiple choice question 16 from the 2025 Waec Model Questions Vol1 Agricultural Science examination.

Waec Model Questions Vol1 2025 Agricultural Science Objective / Multiple Choice Medium Difficulty

Question 16 WAEC_MODEL_QUESTIONS_VOL1 • 2025 • AGRICULTURAL_SCIENCE • objective

A herd of 120 goats is at risk of a contagious disease whose basic reproduction number (R₀) is 3. A vaccine available for the disease has an efficacy of 80 %. What is the minimum number of goats that must be vaccinated to achieve herd immunity in the herd?

Answer Options

A. 120

Correct Answer B. 100

C. 84

D. 96

Correct Answer

Correct Option:

100

About This Question

This is Waec Model Questions Vol1 2025 Agricultural Science Question 16. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

View More Waec Model Questions Vol1 2025 Agricultural Science Questions More Waec Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Chat with Support

Waec Model Questions Vol1 2025 Agricultural Science Question 16

A herd of 120 goats is at risk of a contagious disease whose basic reproduction number (R₀) is 3. A vaccine available for the disease has an efficacy of 80 %. What is the minimum number of goats that must be vaccinated to achieve herd immunity in the herd?

Answer Options

About This Question

Master the Exam!

A herd of 120 goats is at risk of a contagious disease whose basic reproduction number (R₀) is 3. A vaccine available for the disease has an efficacy of 80 %. What is the minimum number of goats that must be vaccinated to achieve herd immunity in the herd?