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 1081: If P = $\left|\begin{array}{cc}5& 3\\ 2& 1\end{array}\right|$ and Q = $\left|\begin{array}{cc}4& 2\\ 3& 5\end{array}\right|$, find 2P + Q Options:
  A) $\left|\begin{array}{cc}7& 7\\ 14& 8\end{array}\right|$
  B) $\left|\begin{array}{cc}14& 8\\ 7& 7\end{array}\right|$
  C) $\left|\begin{array}{cc}7& 7\\ 8& 14\end{array}\right|$
  D) $\left|\begin{array}{cc}8& 14\\ 7& 7\end{array}\right|$
  Show Answer
  The correct answer is B .
• Question 1082:

  Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed?

  Options:
  A) 210
  B) 1050
  C) 21400
  D) 25200
  Show Answer
  The correct answer is A .
• Question 1083: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 1084: The chances of Usman and Dele passing a Mathematics test are 12 and 13 respectively. What is the probability that neither of them passes the test? Options:
  A) $\frac{3}{5}$
  B) $\frac{2}{5}$
  C) $\frac{4}{15}$
  D) $\frac{1}{5}$
  E) $\frac{2}{15}$
  Show Answer
  The correct answer is C .
• Question 1085: 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 1086: if a = -3, b = 2, c = 4, evaluate $\frac{a^3-b^3-c^{\frac{1}{2}}}{b-a-c}$ Options:
  A) 37
  B) $\frac{-37}{5}$
  C) $\frac{37}{5}$
  D) -37
  Show Answer
  The correct answer is A .
• Question 1087: Two variables x and y are such that $\frac{dy}{dx}$ = 4x - 3 and y = 5 when x = 2. Find y in terms of x Options:
  A) 2x² - 3x + 5
  B) 2x² - 3x + 3
  C) 2x² - 3x
  D) 4
  Show Answer
  The correct answer is B .
• Question 1088: Find the product of (2$\sqrt{y-3y}$) and (3y = 2y) Options:
  A) 4y = y²
  B) 4y + 9y²
  C) 4y - 9y²
  D) -4y - 9y²
  E) 2y + y²
  Show Answer
  The correct answer is C .
• Question 1089: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 1090:

  

  In the figure above, PQRS is a circle with ST//RQ. Find the value of x PT = PS.

  Options:
  A) 70${}^{\circ }$
  B) 55${}^{\circ }$
  C) 40${}^{\circ }$
  D) 35${}^{\circ }$
  Show Answer
  The correct answer is B .