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 1701:

  

  The value x in the figure given is

  Options:
  A) 110${}^{\circ }$
  B) 100${}^{\circ }$
  C) 70${}^{\circ }$
  D) 130${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 1702: Simplify $\frac{x(x+1{)}^{\frac{1}{2}}-(x+1{)}^{\frac{1}{2}}}{(x+1{)}^{\frac{1}{2}}}$ Options:
  A) $\frac{-1}{x+1}$
  B) $\frac{1}{x+1}$
  C) $\frac{1}{x}$
  D) $\frac{1}{x-1}$
  Show Answer
  The correct answer is A .
• Question 1703:

  

  In the diagram < OPQ is

  Options:
  A) 90${}^{\circ }$
  B) 53${}^{\circ }$
  C) 36${}^{\circ }$
  D) 26${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1704: Determine the maximum value of y = 3x² - x³ Options:
  A) zero
  B) 2
  C) 4
  D) 6
  Show Answer
  The correct answer is C .
• Question 1705: Make R the subject of the fomula S = $\sqrt{\frac{2R+T}{2RT}}$ Options:
  A) R = $\frac{T}{(T{S}^2+1)}$
  B) R = $\frac{T}{2(T{S}^2-2)}$
  C) R = $\frac{T}{2(T{S}^2+1)}$
  D) R = $\frac{R}{2(T{S}^2+1)}$
  Show Answer
  The correct answer is B .
• Question 1706: Simplify $\frac{5+\sqrt{7}}{3+\sqrt{7}}$ Options:
  A) 17 - $\sqrt{7}$
  B) 4 - $\sqrt{7}$
  C) 15 - $\sqrt{7}$
  D) 7 - $\sqrt{7}$
  Show Answer
  The correct answer is B .
• Question 1707: If 5x - 3 = 4x - 7, what is the value 6x? Options:
  A) 24
  B) 6
  C) 4
  D) -4
  E) -24
  Show Answer
  The correct answer is E .
• Question 1708:

  In a sample survey of a University Community, the following table shows the percentage distribution of the number of members per household:

  $\begin{array}{cccccccccc}\text{No. of members per household}& 1& 2& 3& 4& 5& 6& 7& 8& \text{Total}\\ \text{No. of households}& 3& 12& 15& 28& 21& 10& 7& 4& 100\end{array}$

  What is the median?

  Options:
  A) 4
  B) 3
  C) 5
  D) 4.5
  E) None
  Show Answer
  The correct answer is A .
• Question 1709: Find the mean deviation of the set of numbers 4, 5, 9 Options:
  A) zero
  B) 2
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 1710: Find the derivatives of (2 + 3x)(1 - x) with respect to x Options:
  A) 6
  B) -3
  C) 1 - 6x
  D) 6x - 1
  Show Answer
  The correct answer is C .