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 1421: The angles of a polygon are given by x, 2x, 3x, 4x and 5x respectively. Find the value of x. Options:
  A) 24^o
  B) 30^o
  C) 33^o
  D) 36^o
  Show Answer
  The correct answer is D .
• Question 1422: Find x if (x_base4)² = 100100_base2 Options:
  A) 6
  B) 12
  C) 100
  D) 210
  E) 110
  Show Answer
  The correct answer is B .
• Question 1423: Evaluate $\left|\begin{array}{ccc}2& 0& 5\\ 4& 6& 3\\ 8& 9& 1\end{array}\right|$ Options:
  A) 5y - 2x -18 = 0
  B) 102
  C) -102
  D) -42
  Show Answer
  The correct answer is C .
• Question 1424:

  If P = [$\frac{Q(R-T)}{15}$] ${}^{\frac{1}{3}}$ make T the subject of the relation

  Options:
  A) T = $\frac{R+P^3}{15Q}$
  B) T = $\frac{R-15P^3}{Q}$
  C) T = $\frac{R-15P^3}{Q}$
  D) T = $\frac{15R-Q}{P^3}$
  Show Answer
  The correct answer is C .
• Question 1425:

  

  In the figure, the chords XY and ZW are produced to meet at T such that YT = WT, ZYW = 40${}^{\circ }$ and YTW = 30${}^{\circ }$. What is YXW?

  Options:
  A) 50${}^{\circ }$
  B) 75${}^{\circ }$
  C) 35${}^{\circ }$
  D) 115${}^{\circ }$
  E) 30${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 1426: If tan θ = ⁵/₄, find sin²θ - cos²θ. Options:
  A) ⁵/₄
  B) ⁴¹/₉
  C) ⁹/₄₁
  D) 1
  Show Answer
  The correct answer is C .
• Question 1427: Evaluate 1 − ($\frac{1}{5}$ + 1$\frac{2}{3}$) + (5 + 1$\frac{2}{3}$) Options:
  A) 4
  B) 3
  C) 2$\frac{2}{3}$
  D) 3 $\frac{2}{3}$
  Show Answer
  The correct answer is D .
• Question 1428: if X = {n² + 1 : n = 0, 2, 3} and y = {n + 1 : n = 2, 3, 4, 5}, find x ∩ y Options:
  A) {1, 3}
  B) {5,10}
  C) $\mathrm{\Phi }$
  D) (4, 6)
  Show Answer
  The correct answer is C .
• Question 1429:

  Find the median of 5, 9, 1, 10, 3, 8, 9, 2, 4, 5, 5, 5, 7, 3 and 6

  Options:
  A) 6
  B) 5
  C) 4
  D) 3
  Show Answer
  The correct answer is B .
• Question 1430:

  Find the value of $\frac{(0.5436{)}^3}{0.017\times 0.219}$ to 3 significant figures.

  Options:
  A) 46.2
  B) 43.1
  C) 534
  D) 431
  Show Answer
  The correct answer is B .