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 431: One angle of a rhombus is 60^o. The shorter of the two diagonals is 8cm long. Find the length of the longer one. Options:
  A) 8$\sqrt{3}$
  B) $\frac{16}{\sqrt{3}}$
  C) $\sqrt{3}$
  D) $\frac{10}{\sqrt{3}}$
  Show Answer
  The correct answer is A .
• Question 432: Calculate the mean deviation of the set of numbers 7, 3, 14, 9, 7, and 8. Options:
  A) 13/6
  B) 5/2
  C) 7/6
  D) 7/3
  Show Answer
  The correct answer is D .
• Question 433: P and Q are fixed points and X is a variable point which moves so that angle PXO = 45^o. What is the locus of x? Options:
  A) A pair of straight lines parallel to PQ
  B) The perpendicular bisector of PQ
  C) An arc of a circle passing through P and Q
  D) A circle with diameter PQ
  E) The bisector of angle PXQ
  Show Answer
  The correct answer is A .
• Question 434:

  

  Using $△$XYZ in the figure, find XYZ.

  Options:
  A) 29${}^{\circ }$
  B) 31${}^{\circ }$
  C) 31${}^{\circ }$ 20'
  D) 31${}^{\circ }$ 18'
  Show Answer
  The correct answer is D .
• Question 435: Express 123456 to 3 significant figures Options:
  A) 123 000
  B) 124 000
  C) 125 000
  D) 126 000
  Show Answer
  The correct answer is A .
• Question 436: The seconds term of a geometric series is 4 while the fourth term is 16. Find the sum of the first five terms Options:
  A) 60
  B) 62
  C) 54
  D) 64
  Show Answer
  The correct answer is B .
• Question 437: A room is 12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room Options:
  A) $\frac{5}{17}$
  B) $\frac{8}{17}$
  C) $\frac{8}{15}$
  D) $\frac{12}{17}$
  Show Answer
  The correct answer is A .
• Question 438: (1.28 x 10⁴) + (6.4 x 10²) equals Options:
  A) 2 x 10^-5
  B) 2 x 10^-1
  C) 2 x 10¹
  D) 2 x 10^-4
  Show Answer
  The correct answer is C .
• Question 439:

  

  The value x in the figure given is

  Options:
  A) 110${}^{\circ }$
  B) 100${}^{\circ }$
  C) 70${}^{\circ }$
  D) 130${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 440: The sum of the first n positive integers is Options:
  A) $\frac{1}{2}$(n + 1)
  B) n $\frac{1}{2}$(n + 1)
  C) n(n - 1)
  D) n(n + 1)
  Show Answer
  The correct answer is B .