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 1401:

  Find the equation of the tangent at the point (2, 0) to the curve y = x${}^2$ - 2x

  Options:
  A) y = 2x - 4
  B) y = 2x + 4
  C) y = 2x - 2
  D) y = 2x + 2
  Show Answer
  The correct answer is A .
• Question 1402:
  

  Use the graph of sin (θ) above to estimate the value of θ when sin (θ) = -0.6 for $0^o\le \theta \le {360}^o$

  Options:
  A) θ = 223${}^o$, 305${}^o$
  B) θ = 210${}^o$, 330${}^o$
  C) θ = 185${}^o$, 345${}^o$
  D) θ = 218${}^o$, 323${}^o$
  Show Answer
  The correct answer is D .
• Question 1403: 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 1404:

  Find the equation of a straight line parallel to the line 2x - y = 5 and having intercept of 5

  Options:
  A) 2x + y = 5
  B) 2x + y = -5
  C) 2x - y = -5
  D) 2x - y = 5
  Show Answer
  The correct answer is C .
• Question 1405: Factorize completely (4x + 3y)² - (3x - 2y)² Options:
  A) (x + 5y)(7x + y)
  B) (x + 5y)(7x - y)
  C) (x - 5y)(7x + y)
  D) (x - 5y)(7x -y)
  Show Answer
  The correct answer is A .
• Question 1406:

  

  In the figure, XYZ is a triangle with XY = 5cm, XZ = 2cm and XZ is produced to E making the angle < YZE = 150${}^{\circ }$. If the angle XYZ = $\theta$, calculate the value of sin$\theta$

  Options:
  A) $\frac{3}{5}$
  B) $\frac{1}{2}$
  C) $\frac{2}{5}$
  D) $\frac{1}{5}$
  Show Answer
  The correct answer is D .
• Question 1407: If three unbiased coins are tossed, find the probability that they are all heads Options:
  A) $\frac{1}{2}$
  B) $\frac{1}{3}$
  C) $\frac{1}{9}$
  D) $\frac{1}{8}$
  Show Answer
  The correct answer is D .
• Question 1408:

  $\begin{array}{cccccccc}\text{No. of children}& 0& 1& 2& 3& 4& 5& 6\\ \text{No. of families}& 7& 11& 6& 7& 7& 5& 3\end{array}$

  Find the mode and median respectively of the distribution above

  Options:
  A) 2, 1
  B) 1, 2
  C) 1, 5
  D) 5, 2
  Show Answer
  The correct answer is B .
• Question 1409: Solve the inequality y² - 3y > 18
  Options:
  A) -3 < y < 6
  B) y < -3 or y > 6
  C) y > -3 or y > 6
  D) y < 3 or y < 6
  Show Answer
  The correct answer is A .
• Question 1410:

  A binary operation $\otimes$ is defined by $m\otimes n=mn+m-n$ on the set of real numbers, for all m, n $\in$ R. Find the value of 3 $\otimes$ (2 $\otimes$ 4).

  Options:
  A) 6
  B) 25
  C) 15
  D) 18
  Show Answer
  The correct answer is C .