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Tuesday, 21 April 2026
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Mathematics Past Questions and Answers

Jamb 2019 Mathematics Questions

Question 61:
If the 3rd and 7th terms of a G.P are 9 and 1/9 respectively. Find the common ratio.
  • A \(\frac{1}{3}\)
  • B \(\frac{1}{9}\)
  • C \(\frac{2}{3}\)
  • D \(\frac{2}{9}\)
View Answer & Explanation
Question 62:
If the universal set μ = {x : 1 ≤ x ≤ 20} and
A = {y : multiple of 3}
B = |z : odd numbers}
Find A ∩ B
  • A {1, 3, 6}
  • B {3, 5, 9, 12}
  • C {3, 9, 15}
  • D {2, 3, 9}
View Answer & Explanation
Question 63:
In a committee of 5, which must be selected from 4 males and 3 females. In how many ways can the members be chosen if it were to include 2 females?
  • A 144 ways
  • B 15 ways
  • C 185 ways
  • D 12 ways
View Answer & Explanation
Question 64:
Find the value of k in the equation: \(\sqrt{28} + \sqrt{112} - \sqrt{k} = \sqrt{175}\)
  • A \(\sqrt{28}\)
  • B 7
  • C 28
  • D \(\sqrt{7}\)
View Answer & Explanation
Question 65:
Evaluate \(\frac{2\log_{3} 9 \times \log_{3} 81^{-2}}{\log_{5} 625}\)
  • A 4
  • B -32
  • C -8
  • D 16
View Answer & Explanation