Inequalities - Jamb Mathematics Past Questions and Answers

Question 16:

• JAMB 1981

Find the value of x satisfying \(\frac{x}{2}\) - \(\frac{1}{3}\) < \(\frac{2x}{5}\) + \(\frac{1}{6}\)

A. X < 5
B. X < 7\(\frac{1}{2}\)
C. X > 5
D. X > 7\(\frac{1}{2}\)

Question 17:

• JAMB 1982

What is the least possible value of \(\frac{9}{1 + 2x^2}\) if 0 \(\geq\) x \(\geq\) 2?

A. 9
B. 5
C. 1
D. 2

Question 18:

• JAMB 1984

In a racing competition, Musa covered a distance 5x km in the first hour and (x + 10)km in the next hour. He was second to Nzozi who covered a total distance of 118km in the two hours. Which of the following inequalities is correct?

A. -1 < x < x < 0
B. -3 < x < 3
C. 0 \(\leq\) x < 18
D. 15 < x < 18

Question 19:

• JAMB 1985

List all integers satisfying the inequality -2 \(\leq\) 2 x -6 < 4

A. 2, 3, 4, 5
B. 2, 3, 4
C. 2, 5
D. 3, 4, 5
E. 4, 5

Question 20:

• JAMB 1986

Find all real numbers x which satisfy the inequality \(\frac{1}{3}\)(x + 1) - 1 > \(\frac{1}{5}\)(x + 4)

A. X < 11
B. X < -1
C. X > 6
D. X > 11