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 1341: Factorize completely $\frac{x^3+3x^2-10x}{2x^2-8}$ Options:
  A) $\frac{x(x-5)}{2(x+2)}$
  B) $\frac{x(x+5)}{2(x+2)}$
  C) $\frac{x(x-5)}{2(x-2)}$
  D) $\frac{x^2+5}{2x+4}$
  Show Answer
  The correct answer is B .
• Question 1342: Construct a quadratic equation whose roots are -$\frac{3}{2}$ and 7 Options:
  A) 3x² + 11x + 21 = 0
  B) 2x² + 11x + 21 = 0
  C) 2x² - 11x – 21 = 0
  D) 3x² - 11x - 21 = 0
  E) x² - 11x – 21 = 0
  Show Answer
  The correct answer is C .
• Question 1343: find the equation of the curve which passes through by 6x - 5 Options:
  A) 6x² - 5x + 5
  B) 6x² + 5x + 5
  C) 3x² - 5x - 5
  D) 3x² - 5x + 3
  Show Answer
  The correct answer is D .
• Question 1344: A force of 5 units acts on a particle in the direction to the east and another force of 4 units acts on the particle in the direction north-east. The resultants of the two forces is Options:
  A) $\sqrt{3}$ units
  B) 3 units
  C) $\sqrt{41+20\sqrt{2}}$ units
  D) $\sqrt{41-20\sqrt{2}}$ units
  Show Answer
  The correct answer is C .
• Question 1345:

  

  Find the volume of the figure.

  Options:
  A) $\frac{a{\pi }^2}{3}(x+3y)$
  B) a${\pi }^2$y
  C) $\frac{a{\pi }^2}{3}$(y + x)
  D) ($\frac{1}{3}a{\pi }^{2}x+y$)
  Show Answer
  The correct answer is A .
• Question 1346: If a $\ast$ b = + $\sqrt{ab}$, evaluate 2 $\ast$(12 $\ast$ 27) Options:
  A) 12
  B) 9
  C) 6
  D) 2
  Show Answer
  The correct answer is C .
• Question 1347:

  $\begin{array}{ccccccccc}\text{Marks}& 2& 3& 4& 5& 6& 7& 8& 9\\ \text{No. of students}& 3& 4& 1& 0& 4& 5& 2& 1\end{array}$

  The table above shows the distribution of marks of students in a test. Find the probability of passing the test if the pass mark is 5.

  Options:
  A) $\frac{3}{5}$
  B) $\frac{2}{5}$
  C) $\frac{7}{20}$
  D) $\frac{1}{5}$
  Show Answer
  The correct answer is A .
• Question 1348: In triangle PQR, PQ = 1cm, QR = 2cm and PQR = 120^o Find the longest side of the triangle Options:
  A) $\sqrt{3}$cm
  B) $\sqrt{7}$cm
  C) 3cm
  D) 7cm
  Show Answer
  The correct answer is B .
• Question 1349: In a town of 6250 inhabitants, there were 62 births during 1984. Find the percentage birth rate. Options:
  A) 3%
  B) 1.0%
  C) 2.5%
  D) 5.40%
  Show Answer
  The correct answer is B .
• Question 1350: P varies directly as the square of Q and inversely as R. If P = 36, when Q = 3 and R = 4, find P when Q = 5 and R = 2. Options:
  A) 72
  B) 100
  C) 90
  D) 200
  E) 125
  Show Answer
  The correct answer is D .