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 1441: A man with an annual salary of ₦2000, has allowances of ₦600. If Income Tax is 5%, how much tax does he pay each year? Options:
  A) 15
  B) 20
  C) 30
  D) 25
  Show Answer
  The correct answer is C .
• Question 1442:

  

  From the diagram above, find x

  Options:
  A) 65${}^{\circ }$
  B) 50${}^{\circ }$
  C) 75${}^{\circ }$
  D) 55${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 1443: The length of a notebook 15cm, was measured as 16.8cm. Calculate the percentage error to 2 significant figures. Options:
  A) 12.00%
  B) 11.00%
  C) 10.71%
  D) 0.12%
  Show Answer
  The correct answer is A .
• Question 1444: If y = x² - x - 12, find the range of values of x for which y $\ge$ 0
  Options:
  A) x < -3 0r x > 4
  B) x $\le$ -3 or x $\ge$ 4
  C) -3 < x $\ge$ 4
  D) -3 $\le$ x $\le$ 4
  Show Answer
  The correct answer is C .
• Question 1445:

  

  In the figure above, what is the equation of the line that passes the y-axis at (0,5) and passes the x-axis at (5,0)?

  Options:
  A) y = x + 5
  B) y = -x + 5
  C) y = x - 5
  D) y = -x - 5
  Show Answer
  The correct answer is B .
• Question 1446: The minimum value of $y$ in the equation $y=x^2-6x+8$ Options:
  A) 8
  B) 3
  C) -1
  D) 5
  Show Answer
  The correct answer is D .
• Question 1447:

  

  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 1448: If three numbers P, Q, R are in ratio 6 : 4 : 5, find the value of $\frac{3p-q}{4q+r}$ Options:
  A) $\frac{3}{2}$
  B) $\frac{2}{3}$
  C) 2
  D) 3
  E) 18
  Show Answer
  The correct answer is B .
• Question 1449: The nth term of a sequence is n² - 6n - 4. Find the sum of the 3rd and 4th terms. Options:
  A) 24
  B) 23
  C) -24
  D) -25
  Show Answer
  The correct answer is D .
• Question 1450: Find the rate of change of the volume, V of a sphere with respect to its radius, r when r = 1. Options:
  A) 12π
  B) 4π
  C) 24π
  D) 8π
  Show Answer
  The correct answer is B .