Waec Model Questions Vol1 2017 Agricultural Science Question 7
Practice objective / multiple choice question 7 from the 2017 Waec Model Questions Vol1 Agricultural Science examination.
In a forest plantation the timber volume (m³ ha⁻¹) after t years of growth is V(t) = 0.8t² - 0.05t³ (0 ≤ t ≤ 30). Timber sells for ₦1,500 per m³. Planting cost is ₦2,000 per ha (incurred at year 0) and annual management cost is ₦100 per ha. Using a discount rate of 10 % per annum, the present value of one rotation harvested at age t is: PV(t) = [₦1,500·V(t)]/(1.1)^{t} - ₦2,000 - 100·[1‑(1.1)^{‑t}]/0.10. Determine the rotation age (in whole years) that gives the highest present value.
Answer Options
About This Question
This is Waec Model Questions Vol1 2017 Agricultural Science Question 7. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.