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 261:
  

  Calculate, correct to three significant figures, the length AB in the diagram above.

  Options:
  A) 36.4 cm
  B) 36.1 cm
  C) 36.2 cm
  D) 36.3 cm
  Show Answer
  The correct answer is C .
• Question 262:

  

  In the parallelogram PQRS above, find angle SQR

  Options:
  A) 100${}^{\circ }$
  B) 80${}^{\circ }$
  C) 50${}^{\circ }$
  D) 30${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 263: If 2₉ x (3Y)₉ = 3₅ x (3Y)₅, find the value of Y. Options:
  A) 4
  B) 3
  C) 2
  D) 1
  Show Answer
  The correct answer is D .
• Question 264: $\left(\begin{array}{cc}-2& 1\\ 2& 3\end{array}\right)$ + $\left(\begin{array}{cc}p& q\\ r& s\end{array}\right)$ = $\left(\begin{array}{cc}1& 0\\ 0& 1\end{array}\right)$. What is the value of r? Options:
  A) -$\frac{1}{8}$
  B) $\frac{3}{8}$
  C) $\frac{5}{8}$
  D) $\frac{1}{4}$
  Show Answer
  The correct answer is D .
• Question 265: Find the absolute mean deviation of the sample 10, 12, 14, 11, 13. Options:
  A) 14.6
  B) 14
  C) 12
  D) 6.2
  E) 1.2
  Show Answer
  The correct answer is E .
• Question 266:

  The volume of a cylinder whose height is 4cm and whose radius 5cm is equal to (π = 3.14)

  Options:
  A) 313cm²
  B) 145cm²
  C) 314cm²
  D) 214cm²
  Show Answer
  The correct answer is C .
• Question 267: Evaluate (1/2 - 1/4 - 1/8 - 1/16 + ...) - 1 Options:
  A) 2/3
  B) zero
  C) -2/3
  D) -1
  Show Answer
  The correct answer is C .
• Question 268: The quantity y is partly constant and partly varies inversely as the square of x. With P and Q as constants, a possible relationship between x and y is Options:
  A) y = Q + $\frac{P}{x^2}$
  B) y = Q + px
  C) y = $\frac{PQ}{x^2}$
  D) y = Q - $\frac{P}{x^2}$
  Show Answer
  The correct answer is A .
• Question 269: Solve the inequalities -6 $\le$ 4 - 2x < 5 - x. Options:
  A) -1 < x < 5
  B) -1 < x $\le$ 5
  C) -1 $\le$ x $\le$ 6
  D) -1 $\le$ x < 6
  Show Answer
  The correct answer is B .
• Question 270:

  If sec${}^2$θ + tan${}^2$θ = 3, then the angleθ is equal to?

  Options:
  A) 90º
  B) 30º
  C) 45º
  D) 60º
  Show Answer
  The correct answer is C .