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Sunday, 08 November 2026
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Mathematics Past Questions and Answers

Jamb 1985 Mathematics Questions

Question 6:
Find correct to two decimals places 100 + \(\frac{1}{100}\) + \(\frac{3}{1000}\) + \(\frac{27}{10000}\)
  • A 100.02
  • B 1000.02
  • C 100.22
  • D 100.01
  • E 100.51
View Answer & Explanation
Question 7:
John gives one-third of his money to Janet who has N105.00. He then finds that his money is reduced to one-fourth of what Janet now has. Find how much money john has at first
  • A N45.00
  • B N48.00
  • C N52.00
  • D N60.00
  • E N52.00
View Answer & Explanation
Question 8:
Find x if log9x = 1.5
  • A 72.0
  • B 27.0
  • C 36.0
  • D 3.5
  • E 24.5
View Answer & Explanation
Question 9:
Write h in terms of a, b, c, d if a = \(\frac{b(1 - ch)}{a - dh}\)
  • A H = \(\frac{a - b}{ad}\)
  • B H = \(\frac{1 - b}{ad - bc}\)
  • C H = \(\frac{(a - b)^2}{ad - bc}\)
  • D H = \(\frac{a - b}{ad - bc}\)
  • E H = \(\frac{b - a}{ab - dc}\)
View Answer & Explanation
Question 10:
22\(\frac{1}{2}\)% of the Nigerian Naira is equal to 17\(\frac{1}{10}\)% of a foreign currency M. What is the conversion rate of the M to the Naira?
  • A 1M = 1\(\frac{15}{57}\)N
  • B 1M = 38\(\frac{1}{4}\)N
  • C 1M = 1\(\frac{18}{57}\)N
  • D 1M = 384\(\frac{3}{4}\)N
View Answer & Explanation