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 1811:

  

  In the diagram above, PQR is a circle centre O. If < QPR is XO, find < QRP.

  Options:
  A) x^o
  B) (90 – x)^o
  C) (90 + x)^o
  D) (180 – x)^o
  Show Answer
  The correct answer is B .
• Question 1812:

  What is the general term of the sequence 3, 8, 13, 18, ...?

  Options:
  A) 5n - 2
  B) 5n + 2
  C) 5
  D) 5n
  Show Answer
  The correct answer is A .
• Question 1813: Solve the equation (x - 2) (x - 3) = 12 Options:
  A) 2, 3
  B) 3, 6
  C) -1, 6
  D) 1, -6
  Show Answer
  The correct answer is C .
• Question 1814:

  The extension of a stretched string is directly proportional to its tension. If the extension produced by a tension of 8 Newtons is 2cm, find the extension produced by a tension of 12 Newtons.

  Options:
  A) 2
  B) 1
  C) 0
  D) 3
  Show Answer
  The correct answer is D .
• Question 1815:

  

  In the figure above, TZ is tangent to the circle QPZ. Find x if TZ = 6 units and PQ = 9 units

  Options:
  A) 3
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 1816:

  

  In the fiqure where PQRTU is a circle, ISTI = IRSI and angle TSR = 52${}^{\circ }$. Find the angle marked m.

  Options:
  A) 128${}^{\circ }$
  B) 52${}^{\circ }$
  C) 104${}^{\circ }$
  D) 64${}^{\circ }$
  E) 116${}^{\circ }$
  Show Answer
  The correct answer is E .
• Question 1817:

  An arc of a circle of radius 14cm subtends angle 300° at the centre. Find the perimeter of the sector formed by the arc (take π = $\frac{22}{7}$)

  Options:
  A) 14.67cm
  B) 42.67cm
  C) 101.33cm
  D) 513.33cm
  Show Answer
  The correct answer is C .
• Question 1818: Solve the equation: $\frac{3}{[2(x-2)]}-\frac{2}{[3(2-x)]}=0$ Options:
  A) 3
  B) 2
  C) $\frac{3}{2}$
  D) $\frac{2}{3}$
  E) -3
  Show Answer
  The correct answer is B .
• Question 1819: Evaluate $\frac{0.00000231}{0.007}$ and leave the answer in standard form Options:
  A) 3.3 x 10⁴
  B) 3.3 x 10^-3
  C) 3.3 x 10^-4
  D) 3.3 x 10^-8
  Show Answer
  The correct answer is C .
• Question 1820:

  Given the matrix $A=\left|\begin{array}{cc}3& -2\\ 1& 6\end{array}\right|$. Find the inverse of matrix A.

  Options:
  A) $\left|\begin{array}{cc}6& 2\\ 1& 6\end{array}\right|$
  B) $\left|\begin{array}{cc}\frac{2}{11}& \frac{1}{12}\\ \frac{3}{20}& \frac{1}{10}\end{array}\right|$
  C) $\left|\begin{array}{cc}-3& 2\\ -1& -6\end{array}\right|$
  D) $\left|\begin{array}{cc}\frac{3}{10}& \frac{1}{10}\\ \frac{-1}{20}& \frac{3}{20}\end{array}\right|$
  Show Answer
  The correct answer is D .