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 1691:

  The table below shows the frequency of children of age x years in a hospital:

  x	1	2	3	4	5	6	7	8
  f	3	4	5	6	7	6	5	4

  Use the table to answer the question below:

  How many children are in the hospital

  Options:
  A) 36
  B) 40
  C) 44
  D) 50
  Show Answer
  The correct answer is B .
• Question 1692: Given that 1/2 log₁₀ P = 1, find the value Of P Options:
  A) 10⁴
  B) 10³
  C) 10²
  D) 10¹
  E) 10^-1
  Show Answer
  The correct answer is C .
• Question 1693:

  

  The mean score is

  Options:
  A) 7.0
  B) 8.7
  C) 9.5
  D) 11.0
  Show Answer
  The correct answer is B .
• Question 1694: A binary operation defines $\ast$ on the set of positive integers is such that x $\ast$ y = 2x - 3y + 2 for all positive integers x and y. The binary operation is Options:
  A) commutative and closed on the set of positive integers
  B) neither commutative nor closed on the set of positive integers
  C) commutative but not closed on the set of positive integers
  D) not commutative but closed on the set of positive integers
  Show Answer
  The correct answer is B .
• Question 1695: Simplify ($\sqrt{2}+\frac{1}{\sqrt{3}})(\sqrt{2}-\frac{1}{\sqrt{3}}$) Options:
  A) $\frac{7}{3}$
  B) $\frac{5}{3}$
  C) $\frac{5}{2}$
  D) $\frac{3}{2}$
  Show Answer
  The correct answer is B .
• Question 1696: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 1697:

  Approximate 0.9875 to 1 decimal place.

  Options:
  A) 1.1
  B) 1.0
  C) 0.9
  D) 0.10
  Show Answer
  The correct answer is B .
• Question 1698: 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 1699:

  

  The table above shows that the scores of a group of students in a test. If the average score is 3.5, find the value of x

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is B .
• Question 1700: If the angles of quadrilateral are (P + 10)^o(2P - 30)^o(3P + 20)^o and 4p^o, find p Options:
  A) 63
  B) 40
  C) 36
  D) 28
  Show Answer
  The correct answer is C .