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 731: The angles of a polygon are given by x, 2x, 3x, 4x and 5x respectively. Find the value of x. Options:
  A) 24^o
  B) 30^o
  C) 33^o
  D) 36^o
  Show Answer
  The correct answer is D .
• Question 732: The length of a notebook 15cm, was measured as 16.8cm. Calculate the percentage error to 2 significant figures. Options:
  A) 12.00%
  B) 11.00%
  C) 10.71%
  D) 0.12%
  Show Answer
  The correct answer is A .
• Question 733:

  Evaluate: ${\int }_0^z(sinx-cosx)dx$
  Where $z=\frac{\pi }{4}.(\pi =pi)$

  Options:
  A) $\sqrt{2+1}$
  B) $\sqrt{2}-1$
  C) $-\sqrt{2}-1$
  D) $1-\sqrt{2}$
  Show Answer
  The correct answer is B .
• Question 734: Evaluate$\left(\begin{array}{cc}3& -2\\ -7& 5\end{array}\right)$ + 2$\left(\begin{array}{cc}-2& 4\\ 3& -1\end{array}\right)$ Options:
  A) $\left(\begin{array}{cc}-1& 6\\ -1& 3\end{array}\right)$
  B) $\left(\begin{array}{cc}3& 4\\ -2& 6\end{array}\right)$
  C) $\left(\begin{array}{cc}-1& 6\\ 1& 3\end{array}\right)$
  D) $\left(\begin{array}{cc}3& 4\\ 2& 6\end{array}\right)$
  Show Answer
  The correct answer is A .
• Question 735: Simplify 2$\frac{5}{12}$ - 1$\frac{7}{8}$ x $\frac{6}{5}$ Options:
  A) $\frac{1}{6}$
  B) $\frac{13}{20}$
  C) $\frac{11}{30}$
  D) $\frac{9}{4}$
  E) $\frac{5}{3}$
  Show Answer
  The correct answer is A .
• Question 736: Simplify $\sqrt{48}$ - $\frac{9}{\sqrt{3}}$ + $\sqrt{75}$ Options:
  A) 5√3
  B) 6√3
  C) 8√3
  D) 18√3
  Show Answer
  The correct answer is B .
• Question 737: If the price of oranges was raised by $\frac{1}{2}$k per orange. The number of oranges a customer can buy for ₦2.40 will be less by 16. What is the present price of an orange? Options:
  A) 2$\frac{1}{2}$
  B) $\frac{2}{15}$
  C) 5$\frac{1}{3}$
  D) 20
  Show Answer
  The correct answer is A .
• Question 738:

  

  (Numbers indicate the lengths of the sides of the triangles) If the area of $△$ PQR is k²sq. units what is the area of the shades portion?

  Options:
  A) $\frac{5}{9}$k² sq. units
  B) $\frac{1}{3}$k² sq. units
  C) $\frac{8}{9}$k² sq. units
  D) $\frac{7}{9}$k² sq. units
  E) $\frac{2}{3}$k² sq. u
  Show Answer
  The correct answer is A .
• Question 739: Divide x³ - 2x² - 5x + 6 by (x - 1) Options:
  A) x² - x - 6
  B) x² - 5x + 6
  C) x² - 7x + 6
  D) x² - 5x - 6
  Show Answer
  The correct answer is A .
• Question 740:

  The kinetic element with respect to the multiplication shown in the diagram below is

  $\begin{array}{ccccc}\oplus & p& p& r& s\\ p& r& p& r& p\\ q& p& q& r& s\\ r& r& r& r& r\\ s& q& s& r& q\end{array}$

  Options:
  A) p
  B) q
  C) r
  D) s
  Show Answer
  The correct answer is D .