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 1511:

  Find the missing value in the table below:

  $\begin{array}{ccccccccc}x& -4& -3& -2& -1& 0& 1& 2& 3\\ y=4-3x-x^3& 80& & 18& 8& 4& 0& -10& -32\end{array}$

  Options:
  A) -32
  B) -14
  C) 40
  D) 22
  E) 37
  Show Answer
  The correct answer is C .
• Question 1512: Find the total area of the surface of a solid cylinder whose base radius is 4cm and height is 5cm Options:
  A) 56$\pi$ cm²
  B) 72$\pi$ cm²
  C) 96$\pi$ cm²
  D) 192$\pi$ cm²
  Show Answer
  The correct answer is B .
• Question 1513: If f(x - 4) = x² + 2x + 3, Find, f(2) Options:
  A) 6
  B) 11
  C) 27
  D) 51
  Show Answer
  The correct answer is D .
• Question 1514: A car dealer bought a second-hand car for ₦250,000 and spent ₦70,000 refurbishing it. He then sold the car for ₦400,000. What is the percentage gain? Options:
  A) 60%
  B) 32%
  C) 25%
  D) 20%
  Show Answer
  The correct answer is C .
• Question 1515:

  

  In the diagram above, a cylinder is summounted by a hemisphere bowl. Calculate the volume of the solid.

  Options:
  A) 180 πcm³
  B) 162 πcm³
  C) 216 πcm³
  D) 198 πcm³
  Show Answer
  The correct answer is D .
• Question 1516: BY how much is the mean of 30, 56, 31, 55, 43 and 44 less than the median? Options:
  A) 0.75
  B) 0.50
  C) 0.33
  D) 0.17
  Show Answer
  The correct answer is C .
• Question 1517: The prime factors of 2520 are Options:
  A) 2, 9, 5
  B) 2, 9, 7
  C) 2, 3, 5, 7
  D) 2, 3, 7, 9
  Show Answer
  The correct answer is C .
• Question 1518:

  

  In the diagram, PQ and RS are chords of a circle centre O which meet at T outside the circle. If TP = 24cm. TQ = 8cm and TS = 12cm, find TR.

  Options:
  A) 16cm
  B) 14cm
  C) 12cm
  D) 8cm
  Show Answer
  The correct answer is A .
• Question 1519:

  Each of the interior angles of a regular polygon is 140°. How many sides has the polygon?

  Options:
  A) 9
  B) 8
  C) 7
  D) 5
  Show Answer
  The correct answer is A .
• Question 1520:

  

  From the figure, calculate TH in centimeters

  Options:
  A) $\frac{5}{\sqrt{3}+1}$
  B) $\frac{5}{\sqrt{3}-1}$
  C) $\frac{5}{\sqrt{3}}$
  D) $\frac{\sqrt{3}}{5}$
  Show Answer
  The correct answer is B .