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 571: Find the non-zero positive value of x which satisfies the equation $\left|\begin{array}{ccc}x& 1& 0\\ 1& x& x\\ 0& 1& x\end{array}\right|$ = 0 Options:
  A) 2
  B) 4
  C) √3
  D) √2
  E) 1
  Show Answer
  The correct answer is A .
• Question 572: 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 573: If the value of is taken to be $\frac{22}{7}$, the area of a semi-circle of diameter 42m is Options:
  A) 5544m²
  B) 1386m²
  C) 132m²
  D) 264m²
  E) 693m²
  Show Answer
  The correct answer is E .
• Question 574: The distance travelled by a particle from a fixed point is given as s = (t³ - t² - t + 5)cm. Find the minimum distance that the particle can cover from the fixed point. Options:
  A) 2.3 cm
  B) 4.0cm
  C) 5.2
  D) g
  Show Answer
  The correct answer is B .
• Question 575: Find y, if $\left(\begin{array}{cc}5& -6\\ 2& -7\end{array}\right)\left(\begin{array}{c}5\\ 2\end{array}\right)=\left(\begin{array}{c}7\\ -11\end{array}\right)$ Options:
  A) 8
  B) 5
  C) 3
  D) 2
  Show Answer
  The correct answer is C .
• Question 576:

  Evaluate (0.14² x 0.275) ÷ 7(0.02) to 3 decimal places.

  Options:
  A) 0.039
  B) 0.358
  C) 0.033
  D) 0.308
  Show Answer
  The correct answer is A .
• Question 577: Find the area bounded by the curve y = 3x${}^2$ - 2x + 1, the coordinates x = 1 and x = 3 and the x-axis Options:
  A) 24
  B) 22
  C) 21
  D) 20
  Show Answer
  The correct answer is D .
• Question 578:

  

  Triangle SPT is the solution of the linear inequalities

  Options:
  A) 2y - x - 2 ≤ 0, y + 2x + 2 ≥ 0, -2 ≤ x ≤ - 1
  B) -2 ≤ x ≤ 2, y ≥ 0, y + 2x + 2 ≤ 0, x ≤ 0
  C) 2y - x - 2 ≤ 0, y + 2x + 2 ≤ 0, y ≥ 0, x ≤ 0
  D) 2y - x - 2 ≥ 0, y + 2x + 2 ≤ 0, x ≤ 0
  Show Answer
  The correct answer is A .
• Question 579: Obtain a maximum value of the function f(x) = x${}^3$ - 12x + 11. Options:
  A) -5
  B) -2
  C) 2
  D) 27
  Show Answer
  The correct answer is D .
• Question 580: If angle $\theta$ is 135^o, evaluate cos$\theta$ Options:
  A) $\frac{1}{2}$
  B) $\frac{\sqrt{2}}{2}$
  C) $-\frac{\sqrt{2}}{2}$
  D) $-\frac{1}{2}$
  Show Answer
  The correct answer is B .