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Monday, 19 October 2026
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Mathematics Past Questions and Answers

Jamb 2011 Mathematics Questions

Question 16:
Solve the inequality -6(x + 3) \(\leq\) 4(x - 2)
  • A X \(\leq\) 2
  • B X \(\geq\) -1
  • C X \(\geq\) -2
  • D X \(\leq\) -1
View Answer & Explanation
Question 17:
Solve the inequality x2 + 2x > 15.
  • A X < -3 or x > 5
  • B -5 < x < 3
  • C X < 3 or x > 5
  • D X > 3 or x < -5
View Answer & Explanation
Question 18:
Find the sum of the first 18 terms of the series 3, 6, 9,..., 36.
  • A 505
  • B 513
  • C 433
  • D 635
View Answer & Explanation
Question 19:
The seconds term of a geometric series is 4 while the fourth term is 16. Find the sum of the first five terms
  • A 60
  • B 62
  • C 54
  • D 64
View Answer & Explanation
Question 20:
A binary operation \(\oplus\) om real numbers is defined by x \(\oplus\) y = xy + x + y for two real numbers x and y. Find the value of 3 \(\oplus\) - \(\frac{2}{3}\).
  • A - \(\frac{1}{2}\)
  • B \(\frac{1}{3}\)
  • C -1
  • D 2
View Answer & Explanation