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 811: U is inversely proportional to the cube of V and U = 81 when V = 2. Find U when V = 3 Options:
  A) 24
  B) 27
  C) 32
  D) 36
  Show Answer
  The correct answer is A .
• Question 812: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .
• Question 813:

  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 .
• Question 814: A cylindrical motor of height 12cm has uniform thickness of 2cm. If the diameter of its outer cross section is 10cm, Find the volume of the constituent material. (take $\pi$ = $\frac{22}{7}$ Options:
  A) $\frac{6600}{7}$cm³
  B) 270cm³
  C) 660cm³
  D) $\frac{4224}{7}$cm³
  E) $\frac{1980}{7}$cm³
  Show Answer
  The correct answer is D .
• Question 815: A woman buys 270 oranges for ₦1800.00 and seels at 5 for ₦40.00. What is her profit? Options:
  A) ₦2,160.00
  B) ₦1, 620.00
  C) ₦630.00
  D) ₦360.00
  Show Answer
  The correct answer is D .
• Question 816: The 4th term of an A.P. is 13 while the 10th term is 31. Find the 24th term. Options:
  A) 89
  B) 75
  C) 73
  D) 69
  Show Answer
  The correct answer is C .
• Question 817: Which of the following is NOT a factor of 12⁴ - 5⁴? Options:
  A) 7
  B) 13
  C) 17
  D) 49
  E) 169
  Show Answer
  The correct answer is D .
• Question 818:

  

  The table above shows the distribution of recharge cards of four major GSM operators. What is the probability that a recharge card selected at random will be GTN or Qtel?

  Options:
  A) 3/20
  B) 1/4
  C) 2/5
  D) 3/4
  Show Answer
  The correct answer is C .
• Question 819: The square base of a pyramid of side 3cm has height 8cm. If the pyramid is cut into two parts by a plane parallel to the base midway between the base and the vertex, the volumes of the two sections are Options:
  A) (21cm³, 3cm³)
  B) (24cm³, 3cm³)
  C) (24cm³, 21cm³)
  D) (72cm³, 9cm³)
  E) (63cm³, 9cm³)
  Show Answer
  The correct answer is B .
• Question 820: find the radius of a sphere whose surface area is 154cm² ($\pi =\frac{22}{7}$) Options:
  A) 7.00cm
  B) 3.50cm
  C) 3.00cm
  D) 1.75cm
  Show Answer
  The correct answer is B .