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 381: Evaluate $\int \sin 2xdx$ Options:
  A) cos 2x + k
  B) $\frac{1}{2}$cos 2x + k
  C) $-\frac{1}{2}$cos 2x + k
  D) -cos 2x + k
  Show Answer
  The correct answer is C .
• Question 382:

  p = $\left|\begin{array}{ccc}x& 3& 0\\ 2& y& 3\\ 4& 2& 4\end{array}\right|$

  q = $\left|\begin{array}{ccc}x& 2& z\\ 3& y& 2\\ 0& 3& z\end{array}\right|$ Where p^T is the transpose p calculate /p^T/ when x = 0, y = 1 and z = 2

  Options:
  A) 48
  B) 24
  C) -24
  D) -48
  Show Answer
  The correct answer is B .
• Question 383: If y = (1 + x)², find $\frac{dy}{dx}$ Options:
  A) x - 1
  B) 2 + 2x
  C) 1 + 2x
  D) 2x - 1
  Show Answer
  The correct answer is B .
• Question 384:

  $\begin{array}{ccccccc}\text{No. of days}& 1& 2& 3& 4& 5& 6\\ \text{No. of students}& 20& 2x& 60& 40& x& 50\end{array}$

  The distribution above shows the number of days a group of 260 students were absent from school in a particular term. How many students were absent for at least four days in the term

  Options:
  A) 180
  B) 120
  C) 110
  D) 40
  Show Answer
  The correct answer is B .
• Question 385:

  

  In the figure, find x in terms of a, b and c.

  Options:
  A) a + b + c
  B) 180${}^{\circ }$ - (a + b + c)
  C) a + b + c
  D) a + b
  E) a + c
  Show Answer
  The correct answer is A .
• Question 386: Simplify $\frac{0.0324\times 0.00064}{0.48\times 0.012}$ Options:
  A) 3.6 x 10²
  B) 3.6 x 10^-2
  C) 3.6 x 10^-3
  D) 3.6 x 10^-4
  Show Answer
  The correct answer is C .
• Question 387:

  

  The angles marked in the figure are measured in degrees. Find x.

  Options:
  A) 45${}^{\circ }$
  B) 90${}^{\circ }$
  C) 60${}^{\circ }$
  D) 15${}^{\circ }$
  E) 30${}^{\circ }$
  Show Answer
  The correct answer is E .
• Question 388: The solution of the equation x² - 2x = 8 is Options:
  A) x = 0 or 2
  B) x = -2 or 4
  C) x = 2
  D) x = -4
  E) x = 2 or 4
  Show Answer
  The correct answer is B .
• Question 389: A man is paid r naira per hour for normal work and double rate for overtime. if he does a 35-hour week which includes q hours of overtime, what is his weekly earning in naira? Options:
  A) r(35 + q)
  B) q(35r - q)
  C) q(35 + r)
  D) r(35 + 2q)
  Show Answer
  The correct answer is D .
• Question 390: If the lines 3y = 4x - 1 and qy = x + 3 are parallel to each other, the value of q is Options:
  A) -$\frac{4}{3}$
  B) -$\frac{3}{4}$
  C) $\frac{3}{4}$
  D) $\frac{4}{3}$
  Show Answer
  The correct answer is C .