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 11:
  

  In the diagram above, l₁ is parallel to l₂, Find the value of < PMT

  Options:
  A) 82^o
  B) 36^o
  C) 72^o
  D) 118^o
  Show Answer
  The correct answer is A .
• Question 12: Evaluate $\frac{(x-2)(x^2+3x-2)}{x^2-4}$ Options:
  A) 7
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is B .
• Question 13: Given that log_a2 = 0.693 and log_a3 = 1.097, find log_a 13.5 Options:
  A) 1.404
  B) 1.790
  C) 2.598
  D) 2.790
  Show Answer
  The correct answer is C .
• Question 14:

  If y = x² - x - 12, find the range of values of x for which y $\ge$ 0,

  Options:
  A) -3 $<$ x $\le$ 4
  B) x $<$ -3 or x $>$ 4
  C) -3 $\le$ x $\le$ 4
  D) x $\le$ -3 or x $\ge$ 4
  Show Answer
  The correct answer is C .
• Question 15:

  P(-6, 1) and Q(6, 6) are the two ends of the diameter of a given circle. Calculate the radius.

  Options:
  A) 6.5 units
  B) 13.0 units
  C) 3.5 units
  D) 7.0 units
  Show Answer
  The correct answer is A .
• Question 16: Evaluate correct to 4 decimal places 827.51 x 0.015 Options:
  A) 8.8415
  B) 12.4127
  C) 124.1265
  D) 12.4120
  E) 114.1265
  Show Answer
  The correct answer is B .
• Question 17: A cylindrical pipe 50cm long with radius 7m has one end open. What is the total surface area of the pipe? Options:
  A) 749$\pi$m²
  B) 700$\pi$m²
  C) 350$\pi$m²
  D) 98$\pi$m²
  Show Answer
  The correct answer is A .
• Question 18: express 62 $÷$ 3 as a decimal correct to 3 significant figures Options:
  A) 20.6
  B) 20.667
  C) 20.67
  D) 20.7
  Show Answer
  The correct answer is D .
• Question 19:

  find the range of values of values of r which satisfies the following inequality, where a, b and c are positive $\frac{r}{a}$ + $\frac{r}{b}$ + $\frac{r}{c}$ > 1

  Options:
  A) r > $\frac{abc}{bc+ac+ab}$
  B) r < abc
  C) r > $\frac{1}{a}$ + $\frac{1}{b}$ + $\frac{1}{c}$
  D) r < $\frac{1}{abc}$
  Show Answer
  The correct answer is A .
• Question 20: Find a two-digit number such that three times the tens digit is 2 less than twice the units digit, and twice the number is 20 greater than the number obtained by reversing the digits. Options:
  A) 24
  B) 42
  C) 74
  D) 47
  E) 72
  Show Answer
  The correct answer is D .