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 731: Find the tax on an income of N20,000 if no tax is paid on the first N10,000 and tax is paid at N50 in N1000 on the next N5000 and at N55 in N1000 on the remainder Options:
  A) N500
  B) N552
  C) N255
  D) N525
  Show Answer
  The correct answer is D .
• Question 732:

  

  In the Figure FD\AC, the area of AEF = 6sq.cm. AE = 3cm, BC = 3cm, CD = 5cm, < BCD is an obtuse angle. Find the length of BD.

  Options:
  A) $\sqrt{33}$
  B) 6
  C) 4
  D) 2$\sqrt{13}$
  E) 4$\sqrt{5}$
  Show Answer
  The correct answer is D .
• Question 733:

  

  In the diagram above, |QR| is the diameter of the semicircle QR. Find the area of the figure to the nearest whole number. {$\pi =\frac{22}{7}$}

  Options:
  A) 90cm²
  B) 89cm²
  C) 80cm²
  D) 70cm²
  Show Answer
  The correct answer is A .
• Question 734: If x is a positive real number, find the range of values for which $\frac{1}{3x}$ + $\frac{1}{2}$ > $\frac{1}{4x}$
  Options:
  A) 0 > -$\frac{1}{6}$
  B) x > 0
  C) 0 < x < 4
  D) 0 < x < $\frac{1}{6}$
  Show Answer
  The correct answer is D .
• Question 735: In a class of 120 students, 18 of them scored an A grade in mathematics. If the section representing the A grade students on a pie chart has angle Z^o at the centre of the circle, what is Z? Options:
  A) 15
  B) 27
  C) 50
  D) 52
  E) 54
  Show Answer
  The correct answer is E .
• Question 736: Bola choose at random a number between 1 and 300. What is the probability that the number is divisible by 4? Options:
  A) $\frac{1}{4}$
  B) $\frac{4}{4}$
  C) $\frac{6}{4}$
  D) $\frac{7}{4}$
  Show Answer
  The correct answer is A .
• Question 737: A binary operation $\oplus$ is defines on the set of all positive integers by a $\oplus$ b = ab for all positive integers a, b. Which of the following properties does NOT hold? Options:
  A) closure
  B) identity
  C) positive
  D) inverse
  Show Answer
  The correct answer is D .
• Question 738: The chances of Usman and Dele passing a Mathematics test are 12 and 13 respectively. What is the probability that neither of them passes the test? Options:
  A) $\frac{3}{5}$
  B) $\frac{2}{5}$
  C) $\frac{4}{15}$
  D) $\frac{1}{5}$
  E) $\frac{2}{15}$
  Show Answer
  The correct answer is C .
• Question 739: In Δ ABC, A = 60°, C = 90° and AC = 12m. Find the Length of the hypotenuse. Options:
  A) 24m
  B) 14m
  C) 12m
  D) 7m
  E) 6m
  Show Answer
  The correct answer is A .
• Question 740: Solve the equation x² - 3x - 10 = 0 Options:
  A) -2 or -5
  B) -3 or -10
  C) 5 or -2
  D) 2 or 5
  E) 3 or 10
  Show Answer
  The correct answer is C .