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Monday, 17 August 2026
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Mathematics Past Questions and Answers

Topic: Ratio, proportion and rate

Jamb Mathematics Questions - Ratio, proportion and rate

Question 31:
P varies directly as Q and inversely as R. When Q = 36 and R = 16, P = 27. Find the relation between P, Q and R.
  • A \(P = \frac{Q}{12R}\)
  • B \(P = \frac{12Q}{R}\)
  • C \(P = 12QR\)
  • D \(P = \frac{12}{QR}\)
View Answer & Explanation
Question 32:
What is the common ratio of the G.P. \((\sqrt{10} + \sqrt{5}) + (\sqrt{10} + 2\sqrt{5}) + ... \)?
  • A \(\sqrt{2}\)
  • B \(\sqrt{5}\)
  • C 3
  • D 5
View Answer & Explanation
Question 33:
If three staff of SchoolNGR Limited agreed to share their salary arrears in the ratio of their ages, which are 18 years, 20 years, 22 years respectively. If the sum of the money collected is N120,000.00K, How much does the second staff received?
  • A N36,000
  • B N44,000
  • C N40,000
  • D N15,000
View Answer & Explanation
Question 34:
If the 2nd term of a G.P is \(\frac{8}{9}\) and the 6th term is 4\(\frac{1}{2}\). Find the common ratio.
  • A 2
  • B \(\frac{3}{2}\)
  • C \(\frac{2}{3}\)
  • D 3
View Answer & Explanation
Question 35:
If y varies inversely as x and x = 3 when y =4. Find the value of x when y = 12
  • A 4
  • B 1
  • C 2
  • D 3
View Answer & Explanation