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 2391:

  Factorize 2t² + t - 15

  Options:
  A) (t + 3)(2t - 5)
  B) (2t + 3)(t - 5)
  C) (2t - 3)(t + 5)
  D) (t + 3)(t - 5)
  Show Answer
  The correct answer is A .
• Question 2392: The solutions of x² - 2x - 1 = 0 are the points of intersection of two graphs. if one of the graphs is y = 2 + x - x², find the second graph Options:
  A) y = 1 - x
  B) y = 1 + x
  C) y = x - 1
  D) y = 3x + 3
  Show Answer
  The correct answer is A .
• Question 2393:

  

  The graph shows the cumulative frequency of the distribution of masses of fertilizer for 48 workers in one institution. Which of the following gives the inter-quartile range?

  Options:
  A) $\frac{1}{2}(Q_3-Q_1)$
  B) Q₃ - Q₂
  C) Q₃ - Q₂
  D) Q₃ - Q₁
  Show Answer
  The correct answer is A .
• Question 2394:

  Find the value of x if $\frac{\sqrt{2}}{x+\sqrt{2}}$ = $\frac{1}{x-\sqrt{2}}$

  Options:
  A) 3$\sqrt{2}$ + 4
  B) 3$\sqrt{2}$ - 4
  C) 3 - 2$\sqrt{2}$
  D) 4 + 2$\sqrt{2}$
  Show Answer
  The correct answer is A .
• Question 2395:

  Ina class of 150 students, the sector in a pie chart representing the students offering physics has angle 12${}^o$. How many students are offering physics?

  Options:
  A) 18
  B) 15
  C) 10
  D) 5
  Show Answer
  The correct answer is D .
• Question 2396:

  A wire was shaped to form a square of area 81cm². An equilateral triangle was formed by the same wire,What is the length of a side of the triangle formed?

  Options:
  A) 3cm
  B) 6cm
  C) 9cm
  D) 12cm
  E) 27cm
  Show Answer
  The correct answer is D .
• Question 2397:

  Find the equation of the line through the points (5, 7) parallel to the line 7x + 5y = 12.

  Options:
  A) 5x + 7y = 120
  B) 7x + 5y = 70
  C) x + y = 7
  D) 15x + 17y = 90
  Show Answer
  The correct answer is B .
• Question 2398: If 3^2y + 6(3^y) = 27. Find y Options:
  A) 3
  B) -1
  C) 2
  D) -3
  E) 1
  Show Answer
  The correct answer is E .
• Question 2399: The inverse of matrix N = $\left|\begin{array}{cc}2& 3\\ 1& 4\end{array}\right|$ is Options:
  A) $\frac{1}{5}$ $\left|\begin{array}{cc}2& 1\\ 3& 4\end{array}\right|$
  B) $\frac{1}{5}$ $\left|\begin{array}{cc}4& -3\\ -1& 2\end{array}\right|$
  C) $\frac{1}{5}$ $\left|\begin{array}{cc}2& -1\\ -3& 4\end{array}\right|$
  D) $\frac{1}{5}$ $\left|\begin{array}{cc}4& 3\\ 1& 2\end{array}\right|$
  Show Answer
  The correct answer is B .
• Question 2400:

  

  In the diagram PQ is parallel to RS. What is the value of $\alpha +\beta +\gamma$

  Options:
  A) 180${}^{\circ }$
  B) 90${}^{\circ }$
  C) 360${}^{\circ }$
  D) 200${}^{\circ }$
  Show Answer
  The correct answer is C .