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 171:

  Reach each number to two significant figures and then evaluate $\frac{0.02174\times 1.2047}{0.023789}$

  Options:
  A) 0
  B) 0.9
  C) 1.1
  D) 1.2
  Show Answer
  The correct answer is C .
• Question 172:

  Factorize 4a${}^2$ - 9b${}^2$

  Options:
  A) (2a-3b) (2a+3b)
  B) (2a-b) (2a+3b)
  C) (2a-3b) (a+3b)
  D) (a-3b) (a+3b)
  Show Answer
  The correct answer is A .
• Question 173:

  

  In the figure, DE//BC: DB//FE: DE = 2cm, FC = 3cm, AE = 4cm. Determine the length of EC.

  Options:
  A) 4cm
  B) 6cm
  C) 3cm
  D) 2cm
  E) 1cm
  Show Answer
  The correct answer is B .
• Question 174: The ages of Abu, Segun, Kofi and Funmi are 17 years, (2x -13) years, 14 years and 16 years respectively. What is the value of x if their mean ages is 17.5 years? Options:
  A) 18
  B) 23
  C) 25
  D) 36
  E) 70
  Show Answer
  The correct answer is A .
• Question 175: A sales boy gave a change of N75.00 to a buyer instead of N80.00, calculate his percentage error, correct to one decimal place? Options:
  A) 6.00%
  B) 6.20%
  C) 6.30%
  D) 6.60%
  E) 6.70%
  Show Answer
  The correct answer is C .
• Question 176:

  

  In the figure, find angle x

  Options:
  A) 100${}^{\circ }$
  B) 120${}^{\circ }$
  C) 60${}^{\circ }$
  D) 110${}^{\circ }$
  E) 140${}^{\circ }$
  Show Answer
  The correct answer is E .
• Question 177: If 2x² - kx - 12 is divisible by x-4, Find the value of k. Options:
  A) 4
  B) 5
  C) 6
  D) 7
  Show Answer
  The correct answer is B .
• Question 178:

  Give the number of significant figures of the population of a town which has approximately 5,020,700 people

  Options:
  A) 7 significant figures
  B) 3 significant figures
  C) 4 significant figures
  D) 5 significant figures
  Show Answer
  The correct answer is D .
• Question 179: The locus of all points having a distance of 1 unit from each of the two fixed points a and b is Options:
  A) a line parallel to the line ab
  B) a line perpendicular to the line ab through the mid-point of ab
  C) a circle through a and b with centre at the mid-point of ab
  D) a circle with centre at a and passes through b
  E) a circle in a plane perpendicular to ab and centre at the mid-point of the line ab
  Show Answer
  The correct answer is B .
• Question 180:

  Two numbers are removed at random from the numbers 1, 2, 3 and 4. What is the probability that the sum of the numbers removed is even?

  Options:
  A) $\frac{2}{3}$
  B) $\frac{1}{2}$
  C) $\frac{1}{3}$
  D) $\frac{1}{4}$
  Show Answer
  The correct answer is B .