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 2651: Find the non-zero positive value of x which satisfies the equation $\left|\begin{array}{ccc}x& 1& 0\\ 1& x& x\\ 0& 1& x\end{array}\right|$ = 0 Options:
  A) 2
  B) 4
  C) √3
  D) √2
  E) 1
  Show Answer
  The correct answer is A .
• Question 2652: 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 2653: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 2654: W ∝ L² and W = 6 when L = 4. If L = √17 find W Options:
  A) 6⁷/₈
  B) 6⁵/₈
  C) 6³/₈
  D) 6¹/₈
  Show Answer
  The correct answer is C .
• Question 2655:

  If P = [$\frac{Q(R-T)}{15}$] ${}^{\frac{1}{3}}$ make T the subject of the relation

  Options:
  A) T = $\frac{R+P^3}{15Q}$
  B) T = $\frac{R-15P^3}{Q}$
  C) T = $\frac{R-15P^3}{Q}$
  D) T = $\frac{15R-Q}{P^3}$
  Show Answer
  The correct answer is C .
• Question 2656: Evaluate ∫sec²θ dθ Options:
  A) sec θ tan θ + k
  B) tan θ + k
  C) 2sec θ + k
  D) sec θ + k
  Show Answer
  The correct answer is B .
• Question 2657:

  The weight of a day-old chick was measured to be 0.21g. If the actual weight of the chick is 0.18g, what was the percentage error in the measurement?

  Options:
  A) 15.5%
  B) 18.2%
  C) 14.8%
  D) 16.7%
  Show Answer
  The correct answer is D .
• Question 2658: 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 2659:

  In a group of 500 people, 350 people can speak English, and 400 people can speak French. Find how many people can speak both languages.

  Options:
  A) 750
  B) 850
  C) 250
  D) 150
  Show Answer
  The correct answer is C .
• Question 2660: Find x if (x_base4)² = 100100_base2 Options:
  A) 6
  B) 12
  C) 100
  D) 210
  E) 110
  Show Answer
  The correct answer is B .