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 2721:

  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 2722: W is directly proportional to U. If w = 5 when U = 3, find when W = ²/₇ Options:
  A) ⁶/₃₅
  B) ¹⁰/₂₁
  C) ²¹/₁₀
  D) ³⁵/₆
  Show Answer
  The correct answer is A .
• Question 2723: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 2724:

  

  (Numbers indicate the lengths of the sides of the triangles) If the area of $△$ PQR is k²sq. units what is the area of the shades portion?

  Options:
  A) $\frac{5}{9}$k² sq. units
  B) $\frac{1}{3}$k² sq. units
  C) $\frac{8}{9}$k² sq. units
  D) $\frac{7}{9}$k² sq. units
  E) $\frac{2}{3}$k² sq. u
  Show Answer
  The correct answer is A .
• Question 2725: Find m such that (m + $\sqrt{3}$)(1 - $\sqrt{3}$)² = 6 - 2$\sqrt{2}$ Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is C .
• Question 2726: Two perfect dice are thrown together, Determine the probability of obtaining a total score of 8 Options:
  A) $\frac{1}{12}$
  B) $\frac{5}{36}$
  C) $\frac{1}{6}$
  D) $\frac{7}{36}$
  Show Answer
  The correct answer is B .
• Question 2727: Four interior angles of a pentagon are 90^o - x^o, 90^o + x^o, 110^o - 2x^o, 110^o + 2x^o. Find the fifth interior angle Options:
  A) 110^o
  B) 120^o
  C) 130^o
  D) 140^o
  Show Answer
  The correct answer is D .
• Question 2728:

  Find the solution of the equation x - 8$\sqrt{x}$ + 15 = 0

  Options:
  A) 3, 5
  B) -3, -5
  C) 9, 25
  D) -9, 25
  Show Answer
  The correct answer is C .
• Question 2729:

  If three staff of Chukwudi and Sons Ltd. agreed to share their salary arrears in the ration of their ages, which are 18 years, 20 years, 22 years respectively. If the sum of the money collected is ₦120,000.00K, How much does the second staff receive?

  Options:
  A) ₦36,000
  B) ₦44,000
  C) ₦40,000
  D) ₦15,000
  Show Answer
  The correct answer is C .
• Question 2730: Find the range of values of x which satisfy the inequality $\frac{x}{2}$ + $\frac{x}{3}$ + $\frac{x}{4}$ < 1 Options:
  A) x < $\frac{12}{13}$
  B) x < 13
  C) x < 9
  D) $\frac{13}{12}$
  Show Answer
  The correct answer is A .