Neco Model Questions Vol1 2024 Mathematics Question 1

Practice objective / multiple choice question 1 from the 2024 Neco Model Questions Vol1 Mathematics examination.

Neco Model Questions Vol1 2024 Mathematics Objective / Multiple Choice Hard Difficulty
Question 1 NECO_MODEL_QUESTIONS_VOL1 • 2024 • MATHEMATICS • objective

A water tank consists of a right circular cylinder of radius \(r\) metres and height \(h\) metres, surmounted by a right circular cone having the same radius \(r\) and the same height \(h\). The total volume of the tank is \(3000\ \text{m}^3\) and the total external surface area (including the base of the cylinder but not the circular junction between the cylinder and the cone) is \(1200\ \text{m}^2\). Find the radius \(r\) of the tank, correct to two decimal places.

Answer Options

A. 9.58
Correct Answer B. 10.74
C. 11.23
D. 12.05
Correct Answer
B
Correct Option:
10.74

About This Question

This is Neco Model Questions Vol1 2024 Mathematics Question 1. It is one of the objective questions from the 2024 Neco Model Questions Vol1 Mathematics examination.

Difficulty level: Hard .

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