Waec Model Questions Vol1 2018 Geography Question 10
Practice objective / multiple choice question 10 from the 2018 Waec Model Questions Vol1 Geography examination.
A community faces three environmental hazards with the following 10‑year probabilities (P) and estimated economic losses (L) in million naira: Flood - P = 0.12, L = 45; Landslide - P = 0.05, L = 80; Drought - P = 0.20, L = 30. The risk rating for each hazard is R = P × L. Mitigation options are: Flood mitigation costing 10 million and reducing its probability by 30%; Landslide mitigation costing 15 million and reducing its probability by 50%; Drought mitigation costing 8 million and reducing its probability by 25%. With a total mitigation budget of 30 million naira, which combination of measures should be chosen to maximise the total reduction in risk rating, and what is the resulting total risk rating after mitigation?
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About This Question
This is Waec Model Questions Vol1 2018 Geography Question 10. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Geography examination.
Difficulty level: Hard .
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