Search SchoolNGR

Friday, 06 November 2026
Register . Login

Mathematics Past Questions and Answers

Jamb 1983 Mathematics Questions

Question 11:
The value of (0.03)3 - (0.02)3 is
  • A 0.019
  • B 0.0019
  • C 0.00019
  • D 0.000019
  • E 0.000035
View Answer & Explanation
Question 12:
y varies partly as the square of x and partly as the inverse of the square root of x.Write down the expression for y if y = 2 when x = 1 and y = 6 when x = 4
  • A Y = \(\frac{10x^2}{31} + \frac{52}{31\sqrt{x}}\)
  • B Y = x<sup style='font-size: smaller;'>2</sup> + \(\frac{1}{\sqrt{x}}\)
  • C Y = x<sup style='font-size: smaller;'>2</sup> + \(\frac{1}{x}\)
  • D Y = \(\frac{x^2}{31} + \frac{1}{31\sqrt{x}}\)
View Answer & Explanation
Question 13:
Simplify \(\frac{x - 7}{x^2 - 9}\) x \(\frac{x^2 - 3x}{x^2 - 49}\)
  • A \(\frac{x}{(x - 3)(x - 7)}\)
  • B \(\frac{x}{(x + 3)(x - 7)}\)
  • C \(\frac{x}{(x + 3)(x + 7)}\)
  • D \(\frac{x}{(x - 3)(x + 7)}\)
View Answer & Explanation
Question 14:
The lengths of the sides of a right angled triangle are (3x + 1)cm, (3x - 1)cm and xcm. Find x
  • A 2
  • B 6
  • C 18
  • D 12
  • E 5
View Answer & Explanation
Question 15:
The scores of set of final year students in the first semester examination in a paper are 41, 29, 55, 21, 47, 70, 70, 40, 43, 56, 73, 23, 50, 50. Find the median of the scores.
  • A 47
  • B 50
  • C 48\(\frac{1}{2}\)
  • D 48
  • E 49
View Answer & Explanation