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 51:

  Given that A = {1, 5, 7}

  B = {3, 9, 12, 15}

  C = {2, 4, 6, 8}

  Find (A ∪ B) ∪ C

  Options:
  A) {1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 15}
  B) {1, 2, 3, 5, 6, 8, 12, 15}
  C) {2, 4, 5, 9, 12, 15}
  D) {1, 5, 6, 7, 8, 9, 12, 15}
  Show Answer
  The correct answer is A .
• Question 52:

  A man sells different brands of an items. ${}^1{/}_9$ of the items he has in his shop are from Brand A, ${}^5{/}_8$ of the remainder are from Brand B and the rest are from Brand C. If the total number of Brand C items in the man's shop is 81, how many more Brand B items than Brand C does the shop has?

  Options:
  A) 243
  B) 108
  C) 54
  D) 135
  Show Answer
  The correct answer is C .
• Question 53: The scores of 16 students in a mathematics test are 65, 65, 55, 60, 60, 65, 60, 70, 75, 70, 65, 70, 60, 65, 65,
  70. What is the sum of the median and modal scores? Options:
  A) 125
  B) 130
  C) 140
  D) 150
  Show Answer
  The correct answer is B .
• Question 54: Find, correct to three significant figures, the value of $\sqrt{41830}$. Options:
  A) 205
  B) 647
  C) 2050
  D) 6470
  E) 64.7
  Show Answer
  The correct answer is A .
• Question 55: Calculate the perimeter, in cm, of a sector of a circle of radius 8cm and angle 45^o Options:
  A) 2$\pi$
  B) 8 + 2$\pi$
  C) 16 + 2$\pi$
  D) 16 + 16$\pi$
  Show Answer
  The correct answer is C .
• Question 56:

  

  The bar chart above shows the marks obtained by students in a mathematics test.

  How many students in all took the test?

  Options:
  A) 40
  B) 30
  C) 10
  D) 20
  Show Answer
  The correct answer is A .
• Question 57:

  

  Find the value of $\theta$ in the diagram

  Options:
  A) 60${}^{\circ }$
  B) 100${}^{\circ }$
  C) 120${}^{\circ }$
  D) 30${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 58: Evaluate ${\int }_2^1$(3 - 2x)dx Options:
  A) 33m
  B) 5
  C) 2
  D) 6
  Show Answer
  The correct answer is C .
• Question 59:

  If P varies inversely as the square root of q, where p = 3 and q = 16, find the value of q when p = 4.

  Options:
  A) 12
  B) 8
  C) 9
  D) 16
  Show Answer
  The correct answer is C .
• Question 60: A public car dealer marked up the cost of a car at 30% in an attempt to make 20% gross profit. Due to the value of dollar, he now placed 20% discount on the car. What profit or loss will he make? Options:
  A) 3%
  B) 2%
  C) 4%
  D) 1%
  Show Answer
  The correct answer is C .