Neco 2025 Mathematics Question 8

Practice essay / theory question 8 from the 2025 Neco Mathematics examination. This question covers Inequalities .

Neco 2025 Mathematics Essay / Theory

Topic: Inequalities

Question 8 NECO • 2025 • MATHEMATICS • essay

A company offers a monthly subscription plan where the total cost \(C\) (in naira) for \(n\) months is given by \(C = 150n + 1200 - 30\sqrt{n}\).

( a )

Determine the range of integer values of \(n\) for which the monthly average cost \(\frac{C}{n}\) does not exceed \(\text{\u20A6}200\).

( b )

Solve the inequality \(\left|2n - 15\right| < n + 5\) and express the solution set in interval notation.

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This is Neco 2025 Mathematics Question 8. It is one of the essay questions from the 2025 Neco Mathematics examination.

The question covers Inequalities .

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