Neco 2024 Mathematics Question 14
Practice objective / multiple choice question 14 from the 2024 Neco Mathematics examination.
A cylindrical tank is closed at both ends. Its interior radius is \( r \) metres and its interior height is \( h \) metres. The tank holds \( 5000\pi \) cubic metres of water and its interior height is three times its radius (\( h = 3r \)). The tank walls are \(0.1\) m thick and the top and bottom are \(0.1\) m thick each, so the outer radius is \( r+0.1 \) m and the outer height is \( h+0.2 \) m. Calculate the total outer surface area (including the top and bottom) that must be painted, giving your answer rounded to the nearest square metre.
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About This Question
This is Neco 2024 Mathematics Question 14. It is one of the objective questions from the 2024 Neco Mathematics examination.
Difficulty level: Hard .
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