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 1041: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 1042:

  At what value of x is the function y = x${}^2$ - 2x -3 minimum?

  Options:
  A) 1
  B) -1
  C) -4
  D) 4
  Show Answer
  The correct answer is A .
• Question 1043:

  The following table relates the number of objects f corresponding to a certain size x. What is the average size of an object?

  $\begin{array}{cccccc}f& 1& 2& 3& 4& 5\\ x& 1& 2& 4& 8& 16\end{array}$

  Options:
  A) $\frac{31}{15}$
  B) $\frac{31}{5}$
  C) $\frac{129}{5}$
  D) $\frac{43}{5}$
  E) $\frac{16}{5}$
  Show Answer
  The correct answer is D .
• Question 1044:

  

  Use the cumulative frequency curve to answer the question.
  What is the 80th percentile?

  Options:
  A) 45.5
  B) 46.5
  C) 47.5
  D) 48.5
  Show Answer
  The correct answer is C .
• Question 1045: For what of n is ⁿ⁺¹C₃ = 4(ⁿC₃)? Options:
  A) 6
  B) 5
  C) 4
  D) 3
  Show Answer
  The correct answer is D .
• Question 1046: if P = {x : x is odd, $-1<x\le 20$} and Q is {y:y is prime, $-2<y\le 25$, find P $\cap$ Q. Options:
  A) {3,5,7,11,17,19}
  B) {3,5,11,13,17,19}
  C) {3,5,7,11,13,17,19}
  D) {2,3,5,7,11,13,17,19}
  Show Answer
  The correct answer is C .
• Question 1047: Find the value of x for which the function f(x) = 2x³ - x² - 4x + 4 has a maximum value Options:
  A) ²/₃
  B) 1
  C) - ²/₃
  D) - 1
  Show Answer
  The correct answer is B .
• Question 1048: What value of g will make the expression 4x² - 18xy + g a perfect square? Options:
  A) 9
  B) $\frac{9y^2}{4}$
  C) 81y^2
  D) $\frac{18y^2}{4}$
  Show Answer
  The correct answer is D .
• Question 1049: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 1050:

  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 .