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 2821: ($\sqrt{2}+4\sqrt{2}$) ($\sqrt{3}+\sqrt{2}$) ($\sqrt{3}+\sqrt{2}$) is equal to Options:
  A) 1
  B) ($\sqrt{2}+4\sqrt{2}$)
  C) (6$\sqrt{2}$
  D) 8
  Show Answer
  The correct answer is A .
• Question 2822:

  

  The pie chart above shows the statistical distribution of 80 students in five subjects in an examination. Calculate how many student offer Mathematics.

  Options:
  A) 30
  B) 11
  C) 50
  D) 20
  Show Answer
  The correct answer is B .
• Question 2823: 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 2824:

  Given:

  U = {Even numbers between 0 and 30}

  P = {Multiples of 6 between 0 and 30}

  Q = {Multiples of 4 between 0 and 30}

  Find (P∪Q)^c

  Options:
  A) {2, 10, 14, 22, 26}
  B) {0, 10, 14, 22, 26}
  C) {2,4, 14, 18, 26}
  D) {0, 2, 6, 22, 26}
  Show Answer
  The correct answer is A .
• Question 2825:

  Evaluate $\frac{x{y}^2-x^{2}y}{x^2-x{y}^1}$, when x = -2 and y = 2

  Options:
  A) 3
  B) -$\frac{3}{5}$
  C) $\frac{3}{5}$
  D) -3
  Show Answer
  The correct answer is D .
• Question 2826:

  

  Find the length of the chord |AB| in the diagram shown above.

  Options:
  A) 4.2 cm
  B) 4.3 cm
  C) 3.2 cm
  D) 3.4 cm
  Show Answer
  The correct answer is D .
• Question 2827:

  If the binary operation $\ast$ is defined by m $\ast$ n = mn + m + n for any real number m and n, find the identity of the elements under this operation

  Options:
  A) e = 1
  B) e = -1
  C) e = -2
  D) e = 0
  Show Answer
  The correct answer is D .
• Question 2828: The sum of the first n terms of an arithmetic progresssion is 252. If the first term is -16 and the last term is 72, find the number of terms in the series Options:
  A) 6
  B) 7
  C) 8
  D) 9
  Show Answer
  The correct answer is D .
• Question 2829: Simplify $\frac{(1.25\times {10}^{-4})\times (2.0\times {10}^{-1})}{(6.25\times {10}^5)}$ Options:
  A) 4.0 x 10^-3
  B) 5.0 x 10^-2
  C) 2.0 x 10^-1
  D) 5.0 x 10^-3
  Show Answer
  The correct answer is A .
• Question 2830: 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 .