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 1621: What is the value of r if the distance between the point (4,2) and (1,r) is 3 units? Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is B .
• Question 1622:

  $\begin{array}{ccccccccc}\text{Score}& 3& 4& 5& 6& 7& 8& 9& 10\\ \text{Frequency}& 1& 0& 7& 5& 2& 3& 1& 1\end{array}$

  The table above shows the scores of 20 students in further mathematics test. What is the range of the distribution?

  Options:
  A) 7
  B) 6
  C) 3
  D) 10
  Show Answer
  The correct answer is A .
• Question 1623:

  This table below gives the scores of a group of students in a Further Mathematics Test.

  Score	1	2	3	4	5	6	7
  Frequency	4	6	8	4	10	6	2

  Find the mode of the distribution.

  Options:
  A) 7
  B) 10
  C) 5
  D) 4
  Show Answer
  The correct answer is C .
• Question 1624:

  $\frac{d}{dx}$ cos(3x² - 2x) is equal to

  Options:
  A) -sin(6x - 2)
  B) -sin(3x² - 2x)dx
  C) (6x - 2) sin(3x² - 2x)
  D) -(6x - 2)sin(3x² - 2x)
  Show Answer
  The correct answer is D .
• Question 1625: A sales boy gave a change of N75.00 to a buyer instead of N80.00, calculate his percentage error, correct to one decimal place? Options:
  A) 6.00%
  B) 6.20%
  C) 6.30%
  D) 6.60%
  E) 6.70%
  Show Answer
  The correct answer is C .
• Question 1626: A bag contains 5 blacks balls and 3 red balls. Two balls are picked at random without replacement. What is the probability that a black and red balls are picked? Options:
  A) 15/28
  B) 13/28
  C) 5/14
  D) 3/14
  Show Answer
  The correct answer is A .
• Question 1627: Evaluate the integral ${\int }_{\frac{\pi }{12}}^{\frac{\pi }{4}}$ 2 cos 2x dx Options:
  A) -$\frac{1}{2}$
  B) -1
  C) $\frac{1}{2}$
  D) 1
  Show Answer
  The correct answer is C .
• Question 1628: What is the mean of the data t, 2t-1, t-2, 2t-1, 4t and 2t+2? Options:
  A) 2t
  B) 2t-1
  C) ²/₃t+1
  D) 2t-¹/₃
  Show Answer
  The correct answer is D .
• Question 1629: Find the derivative of $\frac{\sin \theta }{\cos \theta }$ Options:
  A) sec² $\theta$
  B) tan $\theta$ cosec $\theta$
  C) cosec $\theta$sec $\theta$
  D) cosec²$\theta$
  Show Answer
  The correct answer is A .
• Question 1630: Find the curved surface area of a cone with circular base diameter 10 cm and height 12 cm Options:
  A) 25 πcm²
  B) 65 πcm²
  C) 120 πcm²
  D) 156 πcm²
  Show Answer
  The correct answer is B .