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 2381: The area of a circular plate is one-sixteenth the surface area of a ball of a ball, If the area of the plate is given as P cm², then the radius of the ball is Options:
  A) $\frac{2P}{\pi }$
  B) $\frac{P}{\sqrt{\pi }}$
  C) $\frac{P}{\sqrt{2\pi }}$
  D) 2$\frac{P}{\pi }$
  Show Answer
  The correct answer is D .
• Question 2382: Calculate the range of 20, -6, 25, 30, 21, 28, 32, 33, 34, 5, 3, 2, and 1. Options:
  A) 32
  B) 36
  C) 33
  D) 40
  Show Answer
  The correct answer is D .
• Question 2383: The area of a circle of radius 4cm is equal to (Take π = 3.142 ) Options:
  A) 10.3cm²
  B) 15.7cm²
  C) 50.3cm²
  D) 17.4cm²
  Show Answer
  The correct answer is C .
• Question 2384: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 2385: Evaluate (2⁵ × 4^-2) ÷ (2^-3 × 2⁶) Options:
  A) 9
  B) 8
  C) 3
  D) $\frac{8}{9}$
  E) $\frac{1}{4}$
  Show Answer
  The correct answer is E .
• Question 2386: In $\mathrm{\Delta }$XYZ, XY = 3cm, XZ = 5cm and YZ = 7cm. If the bisector of XYZ meets XZ at W, what is the length of XW? Options:
  A) 1.5cm
  B) 25cm
  C) 3cm
  D) 4cm
  E) None of the above
  Show Answer
  The correct answer is A .
• Question 2387:

  

  If the area of $△$PQR above is 12$\sqrt{3}$cm², find the value of q?

  Options:
  A) 7cm
  B) 8cm
  C) 5cm
  D) 6cm
  Show Answer
  The correct answer is D .
• Question 2388: If P = $\left(\begin{array}{cc}2& -3\\ 1& 1\end{array}\right)$ Options:
  A) $\left(\begin{array}{cc}-\frac{1}{5}& -\frac{3}{5}\\ -\frac{1}{5}& -\frac{2}{5}\end{array}\right)$
  B) $\left(\begin{array}{cc}\frac{1}{5}& \frac{3}{5}\\ \frac{1}{5}& \frac{2}{5}\end{array}\right)$
  C) $\left(\begin{array}{cc}-\frac{1}{5}& \frac{3}{5}\\ -\frac{1}{5}& \frac{2}{5}\end{array}\right)$
  D) $\left(\begin{array}{cc}\frac{1}{5}& \frac{3}{5}\\ -\frac{1}{5}& \frac{2}{5}\end{array}\right)$
  Show Answer
  The correct answer is D .
• Question 2389:

  

  The histogram above shows the distribution of monthly incomes of the workers in a company. How many workers earn more than ₦700.00?

  Options:
  A) 16
  B) 12
  C) 8
  D) 6
  Show Answer
  The correct answer is B .
• Question 2390:

  A right circular cone has a base radius r cm and a vertical angle 2y^o. The height of the cone is

  Options:
  A) r tan y^o cm
  B) r sin y^o cm
  C) r cot y^o cm
  D) r cos y^o cm
  E) r cosec y^o cm
  Show Answer
  The correct answer is A .