Neco 2025 Mathematics Question 15

Practice objective / multiple choice question 15 from the 2025 Neco Mathematics examination.

Neco 2025 Mathematics Objective / Multiple Choice Hard Difficulty
Question 15 NECO • 2025 • MATHEMATICS • objective

A solid consists of a right circular cylinder of radius \(r\) cm and height \(h\) cm, with a hemisphere of the same radius attached on top. The total surface area, excluding the base of the cylinder, is \(300\pi\) cm\(^{2}\). Find the radius \(r\), the height \(h\), and the total volume of the solid. Give the volume in terms of \(\pi\).

Answer Options

A. r = 4 cm, h = 30 cm, volume = \frac{1568}{3}\pi cm^{3}
B. r = 6 cm, h = 20 cm, volume = \frac{2592}{3}\pi cm^{3}
C. r = 5 cm, h = 20 cm, volume = \frac{1750}{3}\pi cm^{3}
Correct Answer D. r = 5 cm, h = 25 cm, volume = \frac{2125}{3}\pi cm^{3}
Correct Answer
D
Correct Option:
r = 5 cm, h = 25 cm, volume = \frac{2125}{3}\pi cm^{3}

About This Question

This is Neco 2025 Mathematics Question 15. It is one of the objective questions from the 2025 Neco Mathematics examination.

Difficulty level: Hard .

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