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 2841:

  3 - 7, 8 - 12, 13 - 17, 18 - 22. Which of the following is/are true?

  I. The class Interval is 4

  II. The class boundaries are 2.5, 7.5, 12.5, 18.5, 22.5

  III. The mid-marks are 5, 10, 15, and 20

  Options:
  A) I only
  B) II only
  C) III only
  D) I and II only
  E) II and III only
  Show Answer
  The correct answer is A .
• Question 2842: Find the sum to infinity of the series
  $\frac{1}{4}$, $\frac{1}{8}$, $\frac{1}{16}$,.......... Options:
  A) $\frac{1}{2}$
  B) $\frac{3}{5}$
  C) $\frac{-1}{5}$
  D) $\frac{73}{12}$
  Show Answer
  The correct answer is A .
• Question 2843: 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 2844: 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 2845:

  Solve for x and y respectively in the simultaneous equations -2x - 5y = 3, x + 3y = 0

  Options:
  A) -3, -9
  B) 9, -3
  C) -9,3
  D) 3, -9
  Show Answer
  The correct answer is C .
• Question 2846:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .
• Question 2847: Compute 110011₂ + 11111₂ Options:
  A) 1001010₂
  B) 1010010₂
  C) 1000110₂
  D) 1000100₂
  Show Answer
  The correct answer is B .
• Question 2848: The graph of cumulative frequency distribution is known as Options:
  A) an ogive
  B) a histogram
  C) a frequency polygon
  D) relative frequency
  E) none
  Show Answer
  The correct answer is A .
• Question 2849: If y varies directly as the square root of x and y = 3 when x = 16. Calculate y when x = 64 Options:
  A) 12
  B) 6
  C) 3
  D) 5
  Show Answer
  The correct answer is B .
• Question 2850: In triangle PQR, PQ = 1cm, QR = 2cm and PQR = 120^o Find the longest side of the triangle Options:
  A) $\sqrt{3}$cm
  B) $\sqrt{7}$cm
  C) 3cm
  D) 7cm
  Show Answer
  The correct answer is B .