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 1021: If b³ = a^-2 and c^{$\frac{1}{3}$} = a^{$\frac{1}{2}$}b, express c in terms of a Options:
  A) a^{-$\frac{1}{2}$}
  B) a^{$\frac{1}{3}$}
  C) a^{$\frac{3}{2}$}
  D) a^{$\frac{2}{3}$}
  Show Answer
  The correct answer is A .
• Question 1022: If $m\ast n=(\frac{m}{n}-\frac{n}{m}$) for m, n belong to R, evaluate -3*4 Options:
  A) $\frac{-25}{12}$
  B) $\frac{-7}{12}$
  C) $\frac{7}{12}$
  D) $\frac{25}{12}$
  Show Answer
  The correct answer is C .
• Question 1023: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 1024: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .
• Question 1025: Divide the LCM of 15abc and 20a²bc by their HCF Options:
  A) 10a
  B) 12a
  C) 5abc
  D) 12a²bc
  E) 60a²bc
  Show Answer
  The correct answer is B .
• Question 1026:

  If √(2x + 2) − √x = 1, find x.

  Options:
  A) x = 1 twice
  B) x = 0 or 1
  C) x = 3 or 1
  D) x = 2 twice
  Show Answer
  The correct answer is A .
• Question 1027: A solid cylinder of radius 3cm has a total surface area of 36$\pi$cm². Find its height Options:
  A) 2cm
  B) 3cm
  C) 4cm
  D) 5cm
  E) 6cm
  Show Answer
  The correct answer is B .
• Question 1028: Solve without using tables log₅(62.5) - log₅($\frac{1}{2}$) Options:
  A) 3
  B) 4
  C) 5
  D) 8
  Show Answer
  The correct answer is A .
• Question 1029:

  Find p, q for which $\left(\begin{array}{cc}2p& 8\\ 3& -5q\end{array}\right)$$\left(\begin{array}{c}1\\ 2\end{array}\right)$$\left(\begin{array}{c}24\\ -17\end{array}\right)$

  Options:
  A) -1, 4
  B) 4, 5
  C) 4, 2
  D) 2, -4
  Show Answer
  The correct answer is C .
• Question 1030: Simplify 7$\frac{1}{12}$ - 4$\frac{3}{2}$ + 2$\frac{1}{2}$ Options:
  A) 4
  B) 4$\frac{1}{6}$
  C) 4$\frac{5}{6}$
  D) 5$\frac{1}{6}$
  Show Answer
  The correct answer is C .