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 881: If two angles of a triangle are 30^o each and the longest side is 10cm. Calculate the length of each of the other sides Options:
  A) 5cm
  B) 4cm
  C) 3√3 cm
  D) 10$\frac{3}{3}$cm
  Show Answer
  The correct answer is D .
• Question 882: If y = x sinx, find dy/dx when x = π/2. Options:
  A) -π/2
  B) -1
  C) 1
  D) π/2
  Show Answer
  The correct answer is C .
• Question 883:

  $\begin{array}{cc}Class& Frequency\\ 1-5& 2\\ 6-10& 4\\ 11-15& 5\\ 16-20& 2\\ 21-25& 3\\ 26-30& 2\\ 31-35& 1\\ 36-40& 1\end{array}$

  Find the median of the observation in the table given.

  Options:
  A) 11.5
  B) 12.5
  C) 14.0
  D) 14.5
  Show Answer
  The correct answer is D .
• Question 884:

  

  In the figure, find PRQ

  Options:
  A) 66$\frac{1}{2}$${}^{\circ }$
  B) 62$\frac{1}{2}$${}^{\circ }$
  C) 125${}^{\circ }$
  D) 105${}^{\circ }$
  E) 65${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 885:

  

  In the figure, AB is parallel to CD then x + y + z is

  Options:
  A) 185${}^{\circ }$
  B) 200${}^{\circ }$
  C) 270${}^{\circ }$
  D) 360${}^{\circ }$
  E) 195${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 886:

  

  In the figure, find the area of XYZW.

  Options:
  A) 60cm²
  B) 54cm²
  C) 27cm²
  D) 54$\sqrt{2}$cm²
  E) 27$\sqrt{2}$cm²
  Show Answer
  The correct answer is C .
• Question 887: Find the square root of 170 - 20$\sqrt{30}$ Options:
  A) 2 $\sqrt{10}$ - 5$\sqrt{3}$
  B) 2 $\sqrt{5}$ - 5$\sqrt{6}$
  C) 5 $\sqrt{10}$ - 2$\sqrt{3}$
  D) 3 $\sqrt{5}$ - 8$\sqrt{6}$
  Show Answer
  The correct answer is B .
• Question 888: The difference between 4$\frac{5}{7}$ and 2$\frac{1}{4}$ greater by Options:
  A) $\frac{23}{28}$
  B) $\frac{24}{28}$
  C) $\frac{50}{56}$
  D) $\frac{27}{28}$
  E) $\frac{48}{56}$
  Show Answer
  The correct answer is C .
• Question 889:

  Find the total surface area of a cylinder of base radius 5cm and length 7cm (π = 3.14)

  Options:
  A) 219.9cm²
  B) 157.1cm²
  C) 377.0cm²
  D) 298.7cm²
  Show Answer
  The correct answer is C .
• Question 890: 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 .