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 2081: Two parallel chords of a circle are respectively 46cm and 40cm long. If the radius of the circle is 25cm and the centre of the circle lies between the two chords, what is the distance between the chords? Options:
  A) 7cm
  B) 15cm
  C) 22cm
  D) 26cm
  E) 30cm
  Show Answer
  The correct answer is C .
• Question 2082: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 2083:

  $\begin{array}{ccccc}\text{Scores}& 3& 6& 5& 2\\ \text{Frequency}& 2& 3& 4& 6\end{array}$

  From the table above, find the median.

  Options:
  A) 3
  B) 5
  C) 4
  D) 6
  Show Answer
  The correct answer is A .
• Question 2084:

  The marks scored by 30 students in a Mathematics test are recorded in the table below:

  Scores (Mark)	0	1	2	3	4	5
  No of students	4	3	7	8	6	2

  What is the total number of marks scored by the children?

   

  Options:
  A) 82
  B) 15
  C) 63
  D) 75
  Show Answer
  The correct answer is D .
• Question 2085: The solution of the equation x² - 2x = 8 is Options:
  A) x = 0 or 2
  B) x = -2 or 4
  C) x = 2
  D) x = -4
  E) x = 2 or 4
  Show Answer
  The correct answer is B .
• Question 2086:

  A rectangle has one side that is 6 cm shorter than the other. The area of the rectangle will increase by 68 cm${}^2$ if we add 2 cm to each side of the rectangle. Find the length of the shorter side.

  Options:
  A) 15 cm
  B) 19 cm
  C) 13 cm
  D) 21 cm
  Show Answer
  The correct answer is C .
• Question 2087: If gt² - k - w = 0, make g the subject of the formula Options:
  A) $\frac{k+w}{t^2}$
  B) $\frac{k-w}{t^2}$
  C) $\frac{k+w}{t}$
  D) $\frac{k-w}{t}$
  Show Answer
  The correct answer is A .
• Question 2088: If the 6th term of an arithmetic progression is 11 and the first term is 1, find the common difference. Options:
  A) $\frac{12}{5}$
  B) $\frac{5}{3}$
  C) -2
  D) 2
  Show Answer
  The correct answer is D .
• Question 2089: The area of the curved surface of the cone generated by the sector of a circle radius 6cm and are length 22cm is ($\pi$ = $\frac{22}{7}$) Options:
  A) 58 sq.cm
  B) 34 sq.cm
  C) 132 sq.cm
  D) 77 sq.cm
  E) 66 sq.cm
  Show Answer
  The correct answer is E .
• Question 2090: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .