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 891:

  

  In the diagram, O is the centre of the circle. If SOQ is a diameter and < PRS is 38${}^{\circ }$, what is the value of < PSQ

  Options:
  A) 148${}^{\circ }$
  B) 104${}^{\circ }$
  C) 80${}^{\circ }$
  D) 52${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 892: If log₅20 = x, find x Options:
  A) 1.761
  B) 1.354
  C) 1.861
  D) 2.549
  Show Answer
  The correct answer is C .
• Question 893: What is the mean deviation 0f 3, 5, 8, 11, 12 and 21? Options:
  A) 37
  B) 60
  C) 10
  D) 4.7
  Show Answer
  The correct answer is D .
• Question 894:

  Express 495g as a percentage of 16.5kg

  Options:
  A) 3%
  B) 3 $\frac{1}{3}$%
  C) 15%
  D) 30%
  Show Answer
  The correct answer is A .
• Question 895:

  

  In the figure, DE//BC: DB//FE: DE = 2cm, FC = 3cm, AE = 4cm. Determine the length of EC.

  Options:
  A) 4cm
  B) 6cm
  C) 3cm
  D) 2cm
  E) 1cm
  Show Answer
  The correct answer is B .
• Question 896: What is the area between two concentric circles of diameters 26cm and 20cm? Options:
  A) 100$\pi$
  B) 169$\pi$
  C) 69$\pi$
  D) 9$\pi$
  E) 269$\pi$
  Show Answer
  The correct answer is C .
• Question 897: The 4th term of an A.P. is 13 while the 10th term is 31. Find the 21st term. Options:
  A) 175
  B) 85
  C) 64
  D) 45
  Show Answer
  The correct answer is C .
• Question 898: Factorize abx² + 8y - 4bx - 2axy Options:
  A) (ax - 4)(bx - 2y)
  B) (ax + b)(x - 8y)
  C) (ax - 2y)(bx - 4)
  D) (bx - 4)(ax - 2y)
  E) (abx - 4)(x - 2y)
  Show Answer
  The correct answer is A .
• Question 899: The perimeter of a rectangular lawn is 24m. If the area of the lawn is 35m²; how wide is the lawn? Options:
  A) 5cm
  B) 7m
  C) 12m
  D) 14m
  Show Answer
  The correct answer is A .
• Question 900:

  Evaluate $(\frac{6}{0.32}÷\frac{2}{0.084}{)}^{-1}$ correct to 1 decimal place.

  Options:
  A) 1.3
  B) 2.5
  C) 4.6
  D) 3.2
  Show Answer
  The correct answer is A .