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 1821: Simplify 16$\frac{1}{2}$ x 4$\frac{1}{2}$ x 27$\frac{1}{3}$ Options:
  A) $\frac{3}{8}$
  B) $\frac{2}{3}$
  C) $\frac{3}{4}$
  D) $\frac{3}{2}$
  Show Answer
  The correct answer is A .
• Question 1822: The locus of a point which moves so that it is equidistant from two intersecting straight lines is the Options:
  A) perpendicular bisector of the two lines
  B) angle bisector of the two lines
  C) bisector of the two lines
  D) line parallel to the two lines
  Show Answer
  The correct answer is B .
• Question 1823: Find the value of (4^{$\frac{1}{2}$})⁶ Options:
  A) 1
  B) 2
  C) 4
  D) 6
  E) 8
  Show Answer
  The correct answer is E .
• Question 1824: If x = $\left|\begin{array}{ccc}1& 0& 1\\ 2& -1& 0\\ -1& 0& 1\end{array}\right|$ and y = $\left|\begin{array}{ccc}-1& 1& 2\\ 0& -1& -1\\ 2& 0& 1\end{array}\right|$
  find 2x - y Options:
  A) $\left|\begin{array}{ccc}3& -1& 0\\ 4& -3& -1\\ -4& 1& 1\end{array}\right|$
  B) $\left|\begin{array}{ccc}3& -1& 0\\ 4& -1& 1\\ -4& 1& 1\end{array}\right|$
  C) $\left|\begin{array}{ccc}3& -1& 0\\ 4& -3& 1\\ -4& 1& 1\end{array}\right|$
  D) $\left|\begin{array}{ccc}3& -1& 0\\ 4& 1& 1\\ -4& -1& 1\end{array}\right|$
  Show Answer
  The correct answer is B .
• Question 1825: Find the value of k if $\frac{5+2r}{(r+1)(r-2)}$ expressed in partial fraction is $\frac{k}{r-2}$ + $\frac{L}{r+1}$ where K and L are constants Options:
  A) 3
  B) 2
  C) 1
  D) -1
  Show Answer
  The correct answer is A .
• Question 1826:

  A room is12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room

  Options:
  A) $\frac{15}{17}$
  B) $\frac{8}{17}$
  C) $\frac{8}{15}$
  D) $\frac{12}{17}$
  Show Answer
  The correct answer is A .
• Question 1827: Find the reciprocal of $\frac{\frac{2}{3}}{\frac{1}{2}+\frac{1}{3}}$ Options:
  A) $\frac{4}{5}$
  B) $\frac{5}{4}$
  C) $\frac{2}{5}$
  D) $\frac{6}{7}$
  Show Answer
  The correct answer is B .
• Question 1828: The length a person can jump is inversely proportional to his weight. If a 20 kg person can jump 1.5 m, find the constant of proportionality Options:
  A) 60
  B) 30
  C) 20
  D) 15
  Show Answer
  The correct answer is B .
• Question 1829:
  

  Find the value of x in the diagram above

  Options:
  A) 10 units
  B) 15 units
  C) 5 units
  D) 20 units
  Show Answer
  The correct answer is A .
• Question 1830: Three children shared a basket of mangoes in such a way that the first child took $\frac{1}{4}$ of the mangoes and the second $\frac{3}{4}$ of the remainder. What fraction of the mangoes did the third child take? Options:
  A) $\frac{3}{16}$
  B) $\frac{7}{16}$
  C) $\frac{9}{16}$
  D) $\frac{13}{16}$
  Show Answer
  The correct answer is A .