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 2431: The nth term of the sequence ³/₂, 3, 7, 16, 35, 74 ..... is Options:
  A) 5 . 2^n-2 - n
  B) 5 . 2^n-2 - (n+1) / 2
  C) 3 . 2^n-2
  D) ³/₂ n
  Show Answer
  The correct answer is A .
• Question 2432: At what value of X does the function y = -3 - 2x + X² attain a minimum value? Options:
  A) -1
  B) 14
  C) 4
  D) 1
  Show Answer
  The correct answer is D .
• Question 2433: If the heights of two circular cylinder are in the ratio 2 : 3 and their volumes? Options:
  A) 27 : 32
  B) 27 : 23
  C) 23 : 32
  D) 27 : 23
  Show Answer
  The correct answer is A .
• Question 2434:

  

  The bar chart shows the distribution of marks in a class test. How many students took the test?

  Options:
  A) 17
  B) 20
  C) 25
  D) 30
  Show Answer
  The correct answer is A .
• Question 2435: Two fair dice are tossed together once. What is the probability of getting a total of at least 9 from the outcome? Options:
  A) $\frac{1}{9}$
  B) $\frac{1}{6}$
  C) $\frac{5}{18}$
  D) $\frac{1}{3}$
  E) $\frac{13}{18}$
  Show Answer
  The correct answer is C .
• Question 2436:

  Given that the various faces of a fair dice 1, 2, 3, 4, 5, 6 appeared 30, 43, 54, 40, 41, 32 times respectively in a single toss. Picture the figures as being represented in a simple table with number (X) against frequency (f).

  If a pie chart is used to depict the data, the angle corresponding to 4 is?

  Options:
  A) 10°
  B) 16°
  C) 40°
  D) 60°
  Show Answer
  The correct answer is D .
• Question 2437:

  The angle of elevation and depression of the top and bottom of another building, measured from the top of a 24 m tall building, is 30° and 60°, respectively. Determine the second building's height.

  Options:
  A) 24 m
  B) 32√3 m
  C) 24√3
  D) 32 m
  Show Answer
  The correct answer is D .
• Question 2438: Find the value of t if the standard deviation of 2t, 3t, 4t, 5t, and 6t is √2 Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is A .
• Question 2439:

  

  Triangle OPQ is the solution of the inequalities

  Options:
  A) x - 1 < 0, y + $\ge$ 0, y - x $\ge$ 0
  B) x + 1 $\le$ 0, y + x $\ge$ 0, y - x $\le$ 0
  C) x - 1 $\ge$ 0, y - x $\ge$ 0, y + x $\ge$ 0
  D) y + x $\ge$ 0, y - x $\le$ 0
  Show Answer
  The correct answer is B .
• Question 2440: 3y = 4x - 1 and Ky = x + 3 are equations of two straight lines. If the two lines are perpendicular to each other, find K. Options:
  A) -4/3
  B) -3/4
  C) 3/4
  D) 4/3
  Show Answer
  The correct answer is A .