Search SchoolNGR

Friday, 06 November 2026
Register . Login

Mathematics Past Questions and Answers

Jamb 1984 Mathematics Questions

Question 11:
A trader in country where their currency 'MONI'(M) is in base five bought 1035 oranges at M145 each. If he sold the oranges at M245 each, what will be his gain?
  • A 103<sub style='font-size: smaller;'>5</sub>
  • B 1030<sub style='font-size: smaller;'>5</sub>
  • C 102<sub style='font-size: smaller;'>5</sub>
  • D 2002<sub style='font-size: smaller;'>5</sub>
  • E 3032<sub style='font-size: smaller;'>5</sub>
View Answer & Explanation
Question 12:
Rationalize \(\frac{5\sqrt{7} - 7\sqrt{5}}{\sqrt{7} - \sqrt{5}}\)
  • A -2 \sqrt{35}\)
  • B 4\sqrt{7}\) - 6\(\sqrt{5}\)
  • C -\(\sqrt{35}\)
  • D 4\sqrt{7}\) - 8\(\sqrt{5}\)
  • E \(\sqrt{35}\)
View Answer & Explanation
Question 13:
Simplify \(\frac{3^n - 3^{n - 1}}{3^3 \times 3^n - 27 \times 3^{n - 1}}\)
  • A 1
  • B 6
  • C \(\frac{1}{27}\)
  • D \(\frac{4}{3}\)
View Answer & Explanation
Question 14:
p varies directly as the square of q and inversely as r. If p = 36, when q = 36, when q = 3 and r = 4, find p when q = 5 and r = 2
  • A 72
  • B 100
  • C 90
  • D 200
  • E 125
View Answer & Explanation
Question 15:
Factorize 6x2 - 14x - 12
  • A 2(x + 3)(3x - 2)
  • B 6(x - 2)(x + 1)
  • C 2(x - 3)(3x + 2)
  • D 6(x + 2)(x - 1)
  • E (3x - 4)(2x + 3)
View Answer & Explanation