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 1231: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 1232: PQR is the diagram of a semicircle RSP with centre at Q and radius of length 3.5cm. If QPT = 60^o. Find the perimeter of the figure PTRS. $\pi$ = $\frac{22}{7}$ Options:
  A) 25cm
  B) 18cm
  C) 36cm
  D) 29cm
  E) 25.5cm
  Show Answer
  The correct answer is A .
• Question 1233:

  The following table relates the number of objects f corresponding to a certain size x. What is the average size of an object?

  $\begin{array}{cccccc}f& 1& 2& 3& 4& 5\\ x& 1& 2& 4& 8& 16\end{array}$

  Options:
  A) $\frac{31}{15}$
  B) $\frac{31}{5}$
  C) $\frac{129}{5}$
  D) $\frac{43}{5}$
  E) $\frac{16}{5}$
  Show Answer
  The correct answer is D .
• Question 1234: What factor is common to all the expressions x² - x, 2x² + x - 1 and x² - 1? Options:
  A) x
  B) x + 1
  C) x - 1
  D) No common factor
  E) (2x - 1)
  Show Answer
  The correct answer is D .
• Question 1235: Simplify 5$\sqrt{18}$ - 3$\sqrt{72}$ + 4$\sqrt{50}$ Options:
  A) 17$\sqrt{4}$
  B) 4$\sqrt{17}$
  C) 17$\sqrt{2}$
  D) 12$\sqrt{4}$
  Show Answer
  The correct answer is C .
• Question 1236:

  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 1237:

  Without using tables, evaluate (343)^1/3 x (

  0.14)^-1 x (25)^-1/2

  Options:
  A) 10
  B) 12
  C) 8
  D) 7
  Show Answer
  The correct answer is A .
• Question 1238: Simplify $\frac{(\frac{2}{3}-\frac{1}{5})-\frac{1}{3}\text{of}\frac{2}{5}}{3-\frac{1}{1\frac{1}{2}}}$ Options:
  A) $\frac{1}{7}$
  B) 7
  C) $\frac{1}{3}$
  D) 3
  Show Answer
  The correct answer is A .
• Question 1239: If the lines 3y = 4x - 1 and qy = x + 3 are parallel to each other, the value of q is Options:
  A) -⁴/₃
  B) -³/₄
  C) ⁴/₃
  D) ³/₄
  Show Answer
  The correct answer is D .
• Question 1240:

  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 .