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Saturday, 13 June 2026
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Mathematics Past Questions and Answers

Topic: Indices, Logarithms and Surds

Jamb Mathematics Questions - Indices, Logarithms and Surds

Question 51:
Given that 3x - 5y - 3 = 0, 2y - 6x + 5 = 0 the value of (x, y) is
  • A (\(\frac{-1}{8}, \frac{19}{24}\))
  • B 8, \(\frac{24}{19}\)
  • C -8, \(\frac{24}{19}\)
  • D (\(\frac{19}{24}, \frac{-1}{8}\))
View Answer & Explanation
Question 52:
Solve for a positive number x such that \(2^{(x^3 - x^2 - 2x)} = 1\)
  • A 4
  • B 3
  • C 2
  • D 1
View Answer & Explanation
Question 53:
Simplify and express in standard form \(\frac{0.00275 \times 0.0064}{0.025 \times 0.08}\)
  • A 8.8 x 10<sup style='font-size: smaller;'>-1</sup>
  • B 8.8 x 10<sup style='font-size: smaller;'>-2</sup>
  • C 8.8 x 10<sup style='font-size: smaller;'>-3</sup>
  • D 8.8 x 10<sup style='font-size: smaller;'>3</sup>
View Answer & Explanation
Question 54:
Given that x2 + y2 + z2 = 194, calculate z if x = 7 and \(\sqrt{y}\) = 3
  • A \(\sqrt{10}\)
  • B 8
  • C 12.2
  • D 13.4
View Answer & Explanation
Question 55:
The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number
  • A 3
  • B 16
  • C 18
  • D 38
View Answer & Explanation