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Monday, 02 November 2026
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Mathematics Past Questions and Answers

Jamb 2015 Mathematics Questions

Question 66:
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 67:
Simplify log101.5 + 3 log102 − log100.3
  • A Log<sub style='font-size: smaller;'>10</sub>4
  • B Log<sub style='font-size: smaller;'>10</sub>40
  • C Log<sub style='font-size: smaller;'>10</sub>-40
  • D Log<sub style='font-size: smaller;'>10</sub>4<sup style='font-size: smaller;'>-</sup>
View Answer & Explanation
Question 68:
If x + y = 90 simplify (sinx + siny)2−2sinxsiny
  • A 1
  • B O
  • C 2
  • D -1
View Answer & Explanation
Question 69:
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 70:
Simplify \( [1 ÷ (x^2 + 3x + 2)] + [1 ÷ (x^2 + 5x + 6)] \)
  • A \( \frac{2}{(x + 1)^2} \)
  • B \( \frac{2}{(x + 1)(x + 2} \)
  • C \( \frac{2}{(x + 1)(x + 2} \)
  • D \( \frac{2}{(x + 1)(x + 3} \)
View Answer & Explanation