JAMB 1980 Mathematics Past Questions, Answers & Explanations - Mathematics

Jamb 1980 Mathematics Questions

Question 6:

When a dealer sells a bicycle for N81 he makes a profit of 80%. What did he pay for the bicycle?

Question 7:

The median of the set of numbers 4, 9, 4, 13, 7, 14, 10, 17 is

Question 8:

List all integer values of x satisfying the inequality -1 < 2x - 5 \(\leq\) 5

Question 9:

Find the roots of the equation 10x² - 13x - 3 = 0

A X = \(\frac{3}{5}\) or -\(\frac{1}{2}\)
B X = \(\frac{3}{10}\) or -1
C X = \(\frac{3}{10}\) or 1
D X = \(\frac{1}{5}\) or \(\frac{-3}{2}\)
E X = -\(\frac{1}{5}\) or \(\frac{3}{2}\)

Question 10:

A solid cylinder of radius 3cm has a total surface area of 36\(\pi\)cm2. Find its height