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 1881: What is the next number in the series 2, 1, $\frac{1}{2}$, $\frac{1}{4}$... Options:
  A) $\frac{1}{3}$
  B) $\frac{2}{8}$
  C) $\frac{3}{7}$
  D) $\frac{1}{8}$
  Show Answer
  The correct answer is D .
• Question 1882: If k + 1; 2k - 1, 3k + 1 are three consecutive terms of a geometric progression, find the possible values of the common ratio Options:
  A) 0, 8
  B) -1, $\frac{5}{3}$
  C) 2, 3
  D) 1, -1
  Show Answer
  The correct answer is B .
• Question 1883:

  

  In the diagram given PQ = 10cm, PS = 8cm and < PSR is 60 while < SRQ is a right angle. Find SR

  Options:
  A) 10 $\sqrt{3}$cm
  B) 10cm
  C) 45cm
  D) 14cm
  Show Answer
  The correct answer is D .
• Question 1884:

  $\begin{array}{cccccc}\text{Class Intervals}& 0-2& 3-5& 6-8& 9-11& \\ \text{Frequency}& 3& 2& 5& 3& \end{array}$

  Find the mode of the above distribution.

  Options:
  A) 9
  B) 8
  C) 10
  D) 7
  Show Answer
  The correct answer is D .
• Question 1885:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .
• Question 1886: Which of the following binary operations is cumulative in the set of integers? Options:
  A) a $\ast$ b = a + 2b
  B) a $\ast$ b = a + b - ab
  C) a $\ast$ b = a² + b
  D) a $\ast$ b = $\frac{a(b+1)}{2}$
  Show Answer
  The correct answer is C .
• Question 1887:

  $\begin{array}{ccccc}x& 2& 4& 6& 8\\ f& 4& y& 6& 5\end{array}$

  If the mean of the above frequency distribution is 5.2, find y

  Options:
  A) 2, 1
  B) 1, 2
  C) 1, 5
  D) 5, 2
  Show Answer
  The correct answer is C .
• Question 1888: Simplify (25)^-1/₂ x (27)¹/₃ + (121)^-1/₂ x (625)^-1/₄ Options:
  A) ³⁴/₅₅
  B) ⁹/₁₁
  C) ¹⁴/₅
  D) ³/₂₇₅
  Show Answer
  The correct answer is A .
• Question 1889: Solve for the equation $\sqrt{x}$ - $\sqrt{(x-2)}$ - 1 = 0 Options:
  A) $\frac{3}{2}$
  B) $\frac{2}{3}$
  C) $\frac{4}{9}$
  D) $\frac{9}{4}$
  Show Answer
  The correct answer is D .
• Question 1890: If Log₁₀2 = 0.3010 and Log₁₀3 = 0.4771, evaluate Log₁₀4.5 Options:
  A) 0.9542
  B) 0.6532
  C) 0.4771
  D) 0.3010
  Show Answer
  The correct answer is B .