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 1911: Express the product of 0.00043 and 2000 in standard form. Options:
  A) 8.6 x 10^-3
  B) 8.3 x 10^-2
  C) 8.6 x 10^-1
  D) 8.6 x 10
  Show Answer
  The correct answer is C .
• Question 1912: 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 1913:

  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 1914: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 1915:

  

  In $△$XYZ, determine the cosine of angle Z.

  Options:
  A) $\frac{3}{39}$
  B) $\frac{29}{36}$
  C) $\frac{14}{5}$
  D) $\frac{7}{5}$
  Show Answer
  The correct answer is B .
• Question 1916:

  In a class of 50 students, 40 students offered Physics and 30 offered Biology. How many offered both Physics and Biology?

  Options:
  A) 42
  B) 20
  C) 70
  D) 54
  Show Answer
  The correct answer is B .
• Question 1917: 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 1918: If x > 0, find the range of number x-3, 3x+2,x-1, 4x, 2x-1, x-2, 2x-2, 3x and 3x+1 Options:
  A) 3x+3
  B) 3x+1
  C) 2x+5
  D) 2x+1
  Show Answer
  The correct answer is C .
• Question 1919: Evaluate $\int (2x+3{)}^{\frac{1}{2}}\delta x$ Options:
  A) $\frac{1}{12}(2x+3{)}^6+k$
  B) $\frac{1}{3}(2x+3{)}^{\frac{1}{2}}+k$
  C) $\frac{1}{3}(2x+3{)}^{\frac{3}{2}}+k$
  D) $\frac{1}{12}(2x+3{)}^{\frac{3}{4}}+k$
  Show Answer
  The correct answer is C .
• Question 1920: If the interest on N150.00 for 2¹/₂ years is N4.50, find the interest on N250.00 for 6 months at the same rate Options:
  A) N1.50
  B) N7.50
  C) N15.00
  D) N18.00
  Show Answer
  The correct answer is A .