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 1441:

  Calculate 243${}_{six}$ – 243${}_{five}$ expressing your answer in base 10.

  Options:
  A) 1
  B) 26
  C) 46
  D) 0
  Show Answer
  The correct answer is C .
• Question 1442:

  A sector of circle of radius 7.2cm which substends an angle of 300${}^o$ at the centre is used to form a cone. What s the radius of the base of the cone?

  Options:
  A) 8cm
  B) 9cm
  C) 6cm
  D) 7cm
  Show Answer
  The correct answer is C .
• Question 1443: Factorize 9p² - q² + 6qr - 9r² Options:
  A) (3p - 3q + r)(3p - q - 3r)
  B) (6p - 3q - 3r)(3p - q - 4r)
  C) (3p - q + 3r)(3p - q - 3r)
  D) (3q - p + 3r)(3q - p + 3r)
  Show Answer
  The correct answer is C .
• Question 1444: 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 1445: Solve for x: |x - 2| < 3. Options:
  A) x < 5
  B) -2 < x < 3
  C) -1 < x < 5
  D) x < 1
  Show Answer
  The correct answer is C .
• Question 1446: If the volume of a hemisphere is increasing at a steady rate of 18π m/s, at what rate is its radius changing when its is 6m? Options:
  A) 2.30m/s
  B) 2.00 m/s
  C) 0.25 m/s
  D) 0.20 m/s
  Show Answer
  The correct answer is C .
• Question 1447: In triangle PQR, PQ = 1cm, QR = 2cm and PQR = 120^o Find the longest side of the triangle Options:
  A) $\sqrt{3}$cm
  B) $\sqrt{7}$cm
  C) 3cm
  D) 7cm
  Show Answer
  The correct answer is B .
• Question 1448: Solve for x and y $\left(\begin{array}{cc}1& 1\\ 3& y\end{array}\right)$$\left(\begin{array}{c}x\\ 1\end{array}\right)$ = $\left(\begin{array}{c}4\\ 1\end{array}\right)$ Options:
  A) x = 3, y = 8
  B) x = 3, y = -8
  C) x = -8, y = 3
  D) x = 8, y = -3
  Show Answer
  The correct answer is B .
• Question 1449:

  

  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 1450:

  Add 54 ${}_{eight}$ and 67${}_{eight}$ giving your answers in base eight

  Options:
  A) 111
  B) 121
  C) 123
  D) 143
  Show Answer
  The correct answer is D .