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 801:

  

  In $△$XYZ, determine the cosine of angle Z.

  Options:
  A) $\frac{3}{39}$
  B) $\frac{29}{36}$
  C) $\frac{14}{5}$
  D) $\frac{7}{5}$
  Show Answer
  The correct answer is B .
• Question 802: 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 .
• Question 803: 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 804: Find the distance between the point Q (4,3) and the point common to the lines 2x - y = 4 and x + y = 2 Options:
  A) 3√10
  B) 3√5
  C) √26
  D) √13
  Show Answer
  The correct answer is D .
• Question 805: Find the value of 2a - b if a + b = 8 and 4a - b = 22 Options:
  A) 2
  B) 4
  C) 6
  D) 8
  E) 10
  Show Answer
  The correct answer is E .
• Question 806: Assuming log_e 4.4 = 1.4816 and log_e 7.7 = 2.0142, then the value of log_e $\frac{7}{4}$ is Options:
  A) 0.5326
  B) 3.4958
  C) 0.4816
  D) 0.0142
  E) 1.3594
  Show Answer
  The correct answer is A .
• Question 807:

  

  In the figure, MNQP is a cyclic quadrilateral. MN and Pq are produced to meet at X and NQ and MP are produced to meet at Y. If MNQ = 86${}^{\circ }$ and NQP = 122${}^{\circ }$ find (x${}^{\circ }$, y${}^{\circ }$)

  Options:
  A) 28${}^{\circ }$, 36${}^{\circ }$
  B) 36${}^{\circ }$, 28${}^{\circ }$
  C) 43${}^{\circ }$, 61${}^{\circ }$
  D) 61${}^{\circ }$, 43${}^{\circ }$
  E) 36${}^{\circ }$, 43${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 808: The expression 4x² - 4 has the following as its factors EXCEPT Options:
  A) x - 1
  B) x + 1
  C) x² -1
  D) 4x + 1
  E) 4x - 4
  Show Answer
  The correct answer is D .
• Question 809: Solve for (x, y) in the equation 2x + y = 4: x^2 + xy = -12 Options:
  A) (6, -8): (-2, 8)
  B) (3, -4): (-1, 4)
  C) (8, -4): (-1, 4)
  D) (-8, 6): (8, -2)
  E) (-4, 3): (4, -1)
  Show Answer
  The correct answer is A .
• Question 810:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .