Neco Model Questions Vol1 2023 Mathematics Question 37
Practice objective / multiple choice question 37 from the 2023 Neco Model Questions Vol1 Mathematics examination.
A solid is formed from a right circular cylinder of radius \(r\) cm and height \(h = 3r\) cm. From the top of the cylinder a right circular cone of the same radius \(r\) and height \(h/2\) cm is removed, leaving a cylindrical side surface, the bottom base, and the interior conical surface exposed. The total surface area of the resulting solid (including the bottom base, the outer cylindrical surface and the exposed conical surface) is \(600\pi\) cm\(^2\). Find the radius \(r\) of the cylinder, giving your answer correct to two decimal places.
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About This Question
This is Neco Model Questions Vol1 2023 Mathematics Question 37. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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