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 1991: Find the probability that a number picked at random from the set(43, 44, 45, ..., 60) is a prime number. Options:
  A) $\frac{2}{3}$
  B) $\frac{1}{3}$
  C) $\frac{2}{9}$
  D) $\frac{7}{9}$
  Show Answer
  The correct answer is C .
• Question 1992: Simplify $\sqrt{6a}\times \sqrt{576a^6}$ Options:
  A) ± 16a2
  B) ± 16a
  C) ± 14a2
  D) ± 12a2
  E) ± 12a
  Show Answer
  The correct answer is D .
• Question 1993: 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 1994:

  The smallest number such that when it is divided by 3 has a remainder of 6 and when it is divided by 9, has a remainder of 7 is

  Options:
  A) 387
  B) 493
  C) 502
  D) 441
  E) 634
  Show Answer
  The correct answer is C .
• Question 1995: Which of the following fractions is less than one-third? Options:
  A) $\frac{22}{63}$
  B) $\frac{4}{11}$
  C) $\frac{15}{46}$
  D) $\frac{33}{98}$
  E) $\frac{122}{303}$
  Show Answer
  The correct answer is C .
• Question 1996: If y = 2x² + 9x - 35. Find the range of values for which y < 0. Options:
  A) 7 < x < $\frac{5}{2}$
  B) -5 < 7 < x
  C) -7 < x < 5
  D) -7 < x < $\frac{5}{2}$
  Show Answer
  The correct answer is D .
• Question 1997: What is the least possible value of $\frac{9}{1+2x^2}$ if 0 $\ge$ x $\ge$ 2? Options:
  A) 9
  B) 5
  C) 1
  D) 2
  Show Answer
  The correct answer is C .
• Question 1998:

  The angle of elevation of the top of a tree from a point on the ground 60m away from the foot of the tree is 78°. Find the height of the tree correct to the nearest whole number.

  Options:
  A) 148m
  B) 382m
  C) 282m
  D) 248m
  Show Answer
  The correct answer is C .
• Question 1999: Evaluate 1011²₂ - 101²₂ Options:
  A) 110000₂
  B) 110₂
  C) 1100000₂
  D) 11000₂
  Show Answer
  The correct answer is C .
• Question 2000: If angle $\theta$ is 135^o, evaluate cos$\theta$ Options:
  A) $\frac{1}{2}$
  B) $\frac{\sqrt{2}}{2}$
  C) $-\frac{\sqrt{2}}{2}$
  D) $-\frac{1}{2}$
  Show Answer
  The correct answer is B .