Waec Model Questions Vol1 2022 Geography Question 9
Practice objective / multiple choice question 9 from the 2022 Waec Model Questions Vol1 Geography examination.
A coastal town is exposed to storm‑surge flooding and coastal erosion. Historically, a storm surge of height ≥ 2.5 m occurs on average once every 15 years (Poisson). Coastal erosion causes a loss of 0.8 m of shoreline per year. A proposed 2 km long seawall would cost ₦150 million and would reduce storm‑surge damage by 80 % and the erosion rate by 60 %. Without the seawall, the town's expected annual damage is estimated at ₦12 million from storm surge and ₦5 million from erosion. Using an 8 % annual discount rate over a 20‑year analysis period, calculate the net present value (NPV) of the seawall project. State whether the project has a positive NPV and give the NPV (in millions of naira, to one decimal place).
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About This Question
This is Waec Model Questions Vol1 2022 Geography Question 9. It is one of the objective questions from the 2022 Waec Model Questions Vol1 Geography examination.
Difficulty level: Hard .
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