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 681: The mean of a set of six numbers is 60. If the mean of the first five is 50, find the sixth number in the set. Options:
  A) 105
  B) 100
  C) 95
  D) 110
  Show Answer
  The correct answer is D .
• Question 682: Find the equation of the locus of a point P(x,y) such that PV = PW, where V = (1,1) and W = (3,5) Options:
  A) 2x + 2y = 9
  B) 2x + 3y = 8
  C) 2x + y = 9
  D) x + 2y = 8
  Show Answer
  The correct answer is D .
• Question 683:

  What is the place value of 9 in the number 3.0492?

  Options:
  A) $\frac{9}{10000}$
  B) $\frac{9}{1000}$
  C) $\frac{9}{100}$
  D) $\frac{9}{10}$
  Show Answer
  The correct answer is B .
• Question 684: y = is inversely proportional to x and y = 4 when x = 1/2. Find x when y = 10. Options:
  A) 2
  B) 10
  C) 1/5
  D) 1/10
  Show Answer
  The correct answer is C .
• Question 685: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 686:

  Find the average of the first four prime numbers greater than 10

  Options:
  A) 20
  B) 19
  C) 17
  D) 15
  Show Answer
  The correct answer is D .
• Question 687: A boy leaves station X on a bearing of 035° to station y which is 21km away. He then travels to another station Z on a bearing of 125°. If Z is directly East of X, what is the distance from X to his present position? Options:
  A) 3.0km
  B) 12.04km
  C) 17.2km
  D) 34.18km
  E) 36.61km
  Show Answer
  The correct answer is E .
• Question 688: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 689:

  

  The figure is a solid with the trapezium PQRS as its uniform cross-section. Find its volume

  Options:
  A) 120m²
  B) 576m³
  C) 816m³
  D) 1056m³
  Show Answer
  The correct answer is C .
• Question 690: If the operation * on the set of integers is defined by p * Q = $\sqrt{pq}$, find the value of 4 * ( 8 * 32). Options:
  A) 8
  B) 3
  C) 16
  D) 4
  Show Answer
  The correct answer is A .