Mathematics Exam Past Questions and Answers | JAMB, WAEC and NECO

Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.

• Question 1451: Find the volume of solid generated when the area enclosed by y = 0, y = 2x, and x = 3 is rotated about the x-axis. Options:
  A) 81 π cubic units
  B) 36 π cubic units
  C) 18 π cubic units
  D) 9 π cubic units
  Show Answer
  The correct answer is B .
• Question 1452: Find the number of ways of selecting 8 subjects from 12 subjects for an examination Options:
  A) 490
  B) 495
  C) 496
  D) 498
  Show Answer
  The correct answer is B .
• Question 1453: P(-6, 1) and Q(6, 6) are the two ends of the diameter of a given circle. Calculate the radius. Options:
  A) 6.5 units
  B) 13.0 units
  C) 3.5 units
  D) 7.0 units
  Show Answer
  The correct answer is A .
• Question 1454:

  Evaluate $(\frac{6}{0.32}÷\frac{2}{0.084}{)}^{-1}$ correct to 1 decimal place.

  Options:
  A) 1.3
  B) 2.5
  C) 4.6
  D) 3.2
  Show Answer
  The correct answer is A .
• Question 1455: A binary operation ⊕ on real numbers is defined by x⊕y = xy + x + y for any two real numbers x and y. The value of (-³/₄)⊕6 is Options:
  A) ³/₄
  B) -⁹/₂
  C) ⁴⁵/₄
  D) -³/₄
  Show Answer
  The correct answer is A .
• Question 1456: Three consecutive positive integers k, l and m are such that l² = 3(k+m). Find the value of m Options:
  A) 4
  B) 5
  C) 6
  D) 7
  Show Answer
  The correct answer is A .
• Question 1457: Solve for the equation $\sqrt{x}$ - $\sqrt{(x-2)}$ - 1 = 0 Options:
  A) $\frac{3}{2}$
  B) $\frac{2}{3}$
  C) $\frac{4}{9}$
  D) $\frac{9}{4}$
  Show Answer
  The correct answer is D .
• Question 1458: Find the maximum value of y in the equation y = 1 - 2x - 3x² Options:
  A) 5/4
  B) 5/3
  C) 3/4
  D) 4/3
  Show Answer
  The correct answer is D .
• Question 1459: If (x - 2) and (x + 1) are factors of the expression x³ + px² + qx + 1, what is the sum of p and q Options:
  A) 9
  B) -3
  C) 3
  D) $\frac{17}{3}$
  E) $\frac{2}{3}$
  Show Answer
  The correct answer is B .
• Question 1460: S_n is the sum of the first n terms of a series given by S_n = n₂n - 1. Find the nth term Options:
  A) 4n + 1
  B) 4n - 1
  C) 2n + 1
  D) 2n - 1
  Show Answer
  The correct answer is D .