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 1671: If the minimum value of y = 1 + hx - 3x² is 13, find h. Options:
  A) 13
  B) 12
  C) 11
  D) 10
  Show Answer
  The correct answer is B .
• Question 1672: Without using tables, simplify $\frac{1n\sqrt{216}-1n\sqrt{125}-1n\sqrt{8}}{2(1n3-1n5)}$ Options:
  A) -3
  B) 3
  C) $\frac{3}{5}$
  D) $\frac{-3}{2}$
  E) 1n 6 - 2 1n 5
  Show Answer
  The correct answer is C .
• Question 1673: The solution of the equation x² - 2x = 8 is Options:
  A) x = 0 or 2
  B) x = -2 or 4
  C) x = 2
  D) x = -4
  E) x = 2 or 4
  Show Answer
  The correct answer is B .
• Question 1674:

  If given two points A(3, 12) and B(5, 22) on a x-y plane. Find the equation of the straight line with intercept at 2.

  Options:
  A) y = 5x + 2
  B) y = 5x + 3
  C) y = 12x + 2
  D) y = 22x + 3
  Show Answer
  The correct answer is A .
• Question 1675: Simplify 3 ${}^{n-1}$ × 27 $\frac{n+1}{{81}^n}$ Options:
  A) 3${}^{2n}$
  B) 9
  C) 3ⁿ
  D) 3 ${}^{n+1}$
  Show Answer
  The correct answer is B .
• Question 1676: The arithmetic mean of the ages of 30 pupils in a class is 15.3 years. One boy leaves the class and one girl is enrolled, and the new average age of 30 pupils in the class becomes 15.2 years. How much older is the boy than the girl? Options:
  A) 30 years
  B) 6 years
  C) 9 years
  D) 3 years
  E) 1 year
  Show Answer
  The correct answer is D .
• Question 1677: Solve the simultaneous equations for x in x² + y - 8 = 0, y + 5x - 2 = 0 Options:
  A) -28, 7
  B) 6, -28
  C) 6, -1
  D) -1, 7
  E) 3, 2
  Show Answer
  The correct answer is C .
• Question 1678: The locus of all points at a distance 8cm from a point N passes through points T and S. If S is equidistant from T and N, find the area of triangle STN. Options:
  A) 4$\sqrt{3c{m}^2}$
  B) 16$\sqrt{3c{m}^2}$
  C) 32cm²
  D) 64cm²
  Show Answer
  The correct answer is B .
• Question 1679:

  In how many ways can 2 students be selected from a group of 5 students in a debating competition?

  Options:
  A) 25 ways
  B) 10 ways
  C) 15 ways
  D) 20 ways
  Show Answer
  The correct answer is B .
• Question 1680:

  Solve for t in the equation $\frac{3}{4}$t + $\frac{1}{3}$(21 - t) = 11

  Options:
  A) $\frac{9}{13}$
  B) $\frac{7}{13}$
  C) 5
  D) 9$\frac{3}{5}$
  Show Answer
  The correct answer is D .