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 1521:

  The mean age group of some students is 15years. When the age of a teacher, 45 years old, is added to the ages of the students, the mean of their ages become18 years. Find the number of students in the group.

  Options:
  A) 7
  B) 9
  C) 15
  D) 42
  Show Answer
  The correct answer is B .
• Question 1522: Find the value of x for which the function f(x) = 2x³ - x² - 4x + 4 has a maximum value Options:
  A) $\frac{2}{3}$
  B) 1
  C) -1
  D) -$\frac{2}{3}$
  Show Answer
  The correct answer is B .
• Question 1523: If y = x² - x - 12, find the range of values of x for which y $\ge$ 0
  Options:
  A) x < -3 0r x > 4
  B) x $\le$ -3 or x $\ge$ 4
  C) -3 < x $\ge$ 4
  D) -3 $\le$ x $\le$ 4
  Show Answer
  The correct answer is C .
• Question 1524: After getting a rise of 15%, a man's new monthly salary is ₦345. How much per month did he earn before the increase? Options:
  A) ₦330
  B) n396.75
  C) ₦300
  D) ₦293.25
  E) ₦360
  Show Answer
  The correct answer is C .
• Question 1525: If the lines 2y - kx + 2 = 0 and y + x - ^k/₂ = 0 Intersect at (1, -2), find the value of k Options:
  A) -4
  B) -3
  C) -2
  D) -1
  Show Answer
  The correct answer is C .
• Question 1526: A senatorial candidate had planned to visit seven cities prior to a primary election. However, he could only visit four of the cities. How many different itineraries could be considered? Options:
  A) 640
  B) 840
  C) 520
  D) 920
  Show Answer
  The correct answer is B .
• Question 1527: If the four interior angles of a quadrilateral are (p + 10)${}^{\circ }$, (p - 30)${}^{\circ }$, (2p - 450${}^{\circ }$, and (p + 15)${}^{\circ }$, then p is Options:
  A) 125${}^{\circ }$
  B) 82${}^{\circ }$
  C) 135${}^{\circ }$
  D) 105${}^{\circ }$
  E) 60${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1528: Find m such that (m + $\sqrt{3}$)(1 - $\sqrt{3}$)² = 6 - 2$\sqrt{2}$ Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is C .
• Question 1529:

  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:

  What is the modal age?

  Options:
  A) 4
  B) 5
  C) 6
  D) 7
  Show Answer
  The correct answer is B .
• Question 1530:

  In a group of 500 people, 350 people can speak English, and 400 people can speak French. Find how many people can speak both languages.

  Options:
  A) 750
  B) 850
  C) 250
  D) 150
  Show Answer
  The correct answer is C .