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Wednesday, 04 November 2026
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Mathematics Past Questions and Answers

Jamb 1982 Mathematics Questions

Question 21:
Find the values of x for which the expression \(\frac{(x - 3)(x - 2)}{x^2 + x - 2}\)
  • A 1, -2
  • B -1, 2
  • C 2, 3
  • D -1. -2
  • E -2, -3
View Answer & Explanation
Question 22:
A stone Q is tied to a point P vertically above Q by an inelastic string of length 2 meters. How high does the stone rise when the string is inclined at an angle 60o to the vertical?
  • A It does not rise
  • B 2\(\sqrt{3}\) meters
  • C 3 meters
  • D 1 meters
  • E 3
View Answer & Explanation
Question 23:
Express 130 kilometers per second in meters per hour
  • A 7.8 x 10<sup style='font-size: smaller;'>-5</sup>
  • B 4.68 x 10<sup style='font-size: smaller;'>6</sup>
  • C 7,800,000
  • D 4.68 x 10<sup style='font-size: smaller;'>8</sup>
  • E 7.80 x 10<sup style='font-size: smaller;'>5</sup>
View Answer & Explanation
Question 24:
The quantity y is partly constant and partly varies inversely as the square of x. With P and Q as constants, a possible relationship between x and y is
  • A Y = Q + \(\frac{P}{x^2}\)
  • B Y = Q + px
  • C Y = \(\frac{PQ}{x^2}\)
  • D Y = Q - \(\frac{P}{x^2}\)
View Answer & Explanation
Question 25:
If \(\frac{3e + f}{3f - e}\) = \(\frac{2}{5}\), find the value of \(\frac{e + 3f}{f - 3e}\)
  • A \(\frac{5}{2}\)
  • B 1
  • C \(\frac{26}{7}\)
  • D \(\frac{1}{3}\)
View Answer & Explanation