Neco 2024 Mathematics Question 21

Practice objective / multiple choice question 21 from the 2024 Neco Mathematics examination.

Neco 2024 Mathematics Objective / Multiple Choice Medium Difficulty
Question 21 NECO • 2024 • MATHEMATICS • objective

Consider the system of linear equations \(3x + 2y = 7\) and \((k-1)x - y = 4\). It is known that the solution \((x,y)\) satisfies \(x = 2y\). Find the value of the parameter \(k\) and then determine \(x + y\).

Answer Options

Correct Answer A. k = \frac{53}{14}; x + y = \frac{21}{8}
B. k = \frac{53}{14}; x + y = \frac{22}{8}
C. k = \frac{53}{15}; x + y = \frac{21}{9}
D. k = \frac{54}{14}; x + y = \frac{21}{8}
Correct Answer
A
Correct Option:
k = \frac{53}{14}; x + y = \frac{21}{8}

About This Question

This is Neco 2024 Mathematics Question 21. It is one of the objective questions from the 2024 Neco Mathematics examination.

Difficulty level: Medium .

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