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Monday, 15 June 2026
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Mathematics Past Questions and Answers

Topic: Indices, Logarithms and Surds

Jamb Mathematics Questions - Indices, Logarithms and Surds

Question 16:
If Q is a factor of 18 and T is prime numbers between 2 and 18. What is Q\(\cap\)T?
  • A (2,3)
  • B (2,3,18)
  • C (2,3,9)
  • D (2,3,6)
View Answer & Explanation
Question 17:
Rationalize \(\frac{\sqrt{6} - \sqrt{4}}{\sqrt{6} + \sqrt{4}}\)
  • A 5 + 2 \(\sqrt{6}\)
  • B 5 - 4 \(\sqrt{6}\)
  • C 5 + 4 \(\sqrt{6}\)
  • D 5 - 2 \(\sqrt{6}\)
View Answer & Explanation
Question 18:
Given that A = {1, 5, 7}
B = {3, 9, 12, 15}
C = {2, 4, 6, 8}
Find (A ∪ B) ∪ C
  • A {1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 15}
  • B {1, 2, 3, 5, 6, 8, 12, 15}
  • C {2, 4, 5, 9, 12, 15}
  • D {1, 5, 6, 7, 8, 9, 12, 15}
View Answer & Explanation
Question 19:
Given that A = {3, 4, 1, 10, 1/3 }
B = {4, 3 1/3, 1/3, 7}.
Find A∩B
  • A {}
  • B {1/3, 1, 2}
  • C {3, 4, 1/3}
  • D {1, 3, 1/3}
View Answer & Explanation
Question 20:
Given that Z = {1,2,4,5} what is the power of set Z?
  • A 16
  • B 8
  • C 10
  • D 12
View Answer & Explanation