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 2251: 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 2252: A solid sphere of radius 4cm has a mass of 64kg. What will be the mass of a shell of the same metal whose internal and external radii are 2cm and 3cm respectively? Options:
  A) 5kg
  B) 16kg
  C) 19kg
  D) 6kg
  Show Answer
  The correct answer is A .
• Question 2253:

  

  In the figure, O is the centre of the circle ABC, < CED = 30${}^{\circ }$, < EDA = 40${}^{\circ }$. What is the size of < ABC?

  Options:
  A) 70${}^{\circ }$
  B) 110${}^{\circ }$
  C) 130${}^{\circ }$
  D) 125${}^{\circ }$
  E) 145${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 2254:
  

  Study the given histogram above and answer the question that follows.

  What is the total number of students that scored at most 50 marks?

  Options:
  A) 380
  B) 340
  C) 360
  D) 240
  Show Answer
  The correct answer is C .
• Question 2255: In how many ways can the letters of the word TOTALITY be arranged? Options:
  A) 6720
  B) 6270
  C) 6207
  D) 6027
  Show Answer
  The correct answer is A .
• Question 2256: Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places? Options:
  A) 9.60m
  B) 6.06m
  C) 2.54m
  D) 2.53m
  E) 2.00m
  Show Answer
  The correct answer is D .
• Question 2257: The inverse of matrix N = $\left|\begin{array}{cc}2& 3\\ 1& 4\end{array}\right|$ is Options:
  A) $\frac{1}{5}$ $\left|\begin{array}{cc}2& 1\\ 3& 4\end{array}\right|$
  B) $\frac{1}{5}$ $\left|\begin{array}{cc}4& -3\\ -1& 2\end{array}\right|$
  C) $\frac{1}{5}$ $\left|\begin{array}{cc}2& -1\\ -3& 4\end{array}\right|$
  D) $\frac{1}{5}$ $\left|\begin{array}{cc}4& 3\\ 1& 2\end{array}\right|$
  Show Answer
  The correct answer is B .
• Question 2258: Express $\frac{5x-12}{(x-2)(x-3)}$ in partial fractions Options:
  A) $\frac{2}{x-2}-\frac{3}{x-3}$
  B) $\frac{2}{x-2}+\frac{3}{x-3}$
  C) $\frac{2}{x-2}-\frac{3}{x-2}$
  D) $\frac{5}{x-3}-\frac{4}{x-2}$
  Show Answer
  The correct answer is B .
• Question 2259: Find the derivative of $y=\frac{x^7-x^5}{x^4}$ Options:
  A) x(x²-1)
  B) 3x(x²-1)
  C) 3x²-1
  D) 7x⁶-5x⁴
  Show Answer
  The correct answer is C .
• Question 2260: Evaluate 5^-3log₅2 x 2^2log₂3 Options:
  A) 8
  B) 1¹/₈
  C) ²/₅
  D) ¹/₈
  Show Answer
  The correct answer is B .