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 1261: Factorize completely (4x + 3y)² - (3x - 2y)² Options:
  A) (x + 5y)(7x + y)
  B) (x + 5y)(7x - y)
  C) (x - 5y)(7x + y)
  D) (x - 5y)(7x -y)
  Show Answer
  The correct answer is A .
• Question 1262: 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 1263:

  

  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 1264: 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 1265: Find the derivative of $y=\frac{x^7-x^5}{x^4}$ Options:
  A) x(x²-1)
  B) 3x(x²-1)
  C) 3x²-1
  D) 7x⁶-5x⁴
  Show Answer
  The correct answer is C .
• Question 1266:

  The ages of students in a small primary school were recorded in the table below.

  Age	5 - 6	7 - 8	9 -10
  Frequency	29	40	38

  
  Estimate the mean

  Options:
  A) 7.7
  B) 7.5
  C) 7.8
  D) 7.6
  Show Answer
  The correct answer is A .
• Question 1267: Find the equation of the line through the points (-2, 1) and (-$\frac{1}{2}$, 4) Options:
  A) y = 2x - 3
  B) y = 2x + 5
  C) y = 3x - 2
  D) y = 2x + 1
  Show Answer
  The correct answer is B .
• Question 1268:

  What is the product of $\frac{27}{5}$, $(3{)}^{-3}$ and ($\frac{1}{5}{)}^{-1}$?

  Options:
  A) 5
  B) 3
  C) 1
  D) $\frac{1}{25}$
  Show Answer
  The correct answer is C .
• Question 1269: Given distribution of color beads: blue, black, yellow, white and brown with frequencies 1, 2, 3, 4, and 5 respectively. Find the probability that a bead picked at random will be blue or white. Options:
  A) 7/15
  B) 2/5
  C) 1/3
  D) 1/15
  Show Answer
  The correct answer is C .
• Question 1270: Find the mean deviation of 1, 2, 3 and 4. Options:
  A) 2.5
  B) 2.0
  C) 1.0
  D) 1.5
  E) 1.2
  Show Answer
  The correct answer is C .