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 1341: Solve for x in 8x^-2 = 2/25 Options:
  A) 4
  B) 6
  C) 8
  D) 10
  Show Answer
  The correct answer is D .
• Question 1342: A chord of circle of radius 7cm is 5cm from the centre of the maximum possible area of the square? Options:
  A) 4√6 cm
  B) 3√6 cm
  C) 6√6 cm
  D) 2√6 cm
  Show Answer
  The correct answer is A .
• Question 1343:

  P(-6, 1) and Q(6, 6) are the two ends of the diameter of a given circle. Calculate the radius.

  Options:
  A) 6.5 units
  B) 13.0 units
  C) 3.5 units
  D) 7.0 units
  Show Answer
  The correct answer is A .
• Question 1344: The annul profits of a transport business were divided between the partners A and B in the ratio 3 : 5. If B received ₦3000 more than A, the total profit was Options:
  A) ₦5000
  B) ₦1800
  C) ₦12000
  D) ₦24000
  E) ₦8000
  Show Answer
  The correct answer is C .
• Question 1345: If 2q3₅ = 77₈, find q Options:
  A) 2
  B) 1
  C) 4
  D) O
  Show Answer
  The correct answer is A .
• Question 1346: What must be added to 4x² - 4 to make it a perfect square? Options:
  A) $\frac{-1}{x^2}$
  B) $\frac{1}{x^2}$
  C) 1
  D) -1
  Show Answer
  The correct answer is B .
• Question 1347:

  A bag contains 8 red balls and some white balls. If the probability of drawing a white ball is half of the probability of drawing a red ball then find the probability of drawing a red ball and a white ball if the balls are drawn without replacement.

  Options:
  A) $\frac{1}{3}$
  B) $\frac{2}{9}$
  C) $\frac{2}{3}$
  D) $\frac{8}{33}$
  Show Answer
  The correct answer is D .
• Question 1348: If x is inversely proportional to y and x = 2$\frac{1}{2}$ when y = 2, find x if y = 4 Options:
  A) 4
  B) 5
  C) 1$\frac{1}{4}$
  D) 2$\frac{1}{4}$
  Show Answer
  The correct answer is C .
• Question 1349:

  Factorize completely 81a${}^4$ - 16b${}^4$

  Options:
  A) (3a + 2b)(2a - 3b)(9a² + 4b²)
  B) (3a - 2b)(2a - 3b)(4a² - 9b²)
  C) (3a - 2b)(3a + 2b)(9a² + 4b²)
  D) (6a - 2b)(8a - 3b)(4a³ - 9b²)
  Show Answer
  The correct answer is C .
• Question 1350: Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13. Options:
  A) 2
  B) 4
  C) 10
  D) 11
  Show Answer
  The correct answer is A .