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 1581: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 1582: Factorize completely the expression abx² + 6y - 3ax - 2byx Options:
  A) (ax - 2y)(bx - 3)
  B) (bx + 3)(2y - ax)
  C) (bx + 3)(ax - 2y)
  D) (ax - 2y)(ax - b)
  Show Answer
  The correct answer is A .
• Question 1583:

  $\frac{\frac{2}{3}÷\frac{4}{5}}{\frac{1}{4}+\frac{3}{5}-\frac{1}{3}}$

  Options:
  A) $\frac{31}{50}$
  B) $\frac{20}{31}$
  C) $\frac{31}{20}$
  D) $\frac{50}{31}$
  Show Answer
  The correct answer is D .
• Question 1584: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 1585: If sin x = cos 50^o, then x equals Options:
  A) 40^o
  B) 45^o
  C) 50^o
  D) 90^o
  E) 130^o
  Show Answer
  The correct answer is A .
• Question 1586: If 2257 is the result of subtracting 4577 from 7056 in base n, find n Options:
  A) 8$\frac{17}{30}$
  B) 9$\frac{9}{10}$
  C) 10$\frac{1}{10}$
  D) 11$\frac{11}{36}$
  Show Answer
  The correct answer is A .
• Question 1587: Solve for x: |x - 2| < 3. Options:
  A) x < 5
  B) -2 < x < 3
  C) -1 < x < 5
  D) x < 1
  Show Answer
  The correct answer is C .
• Question 1588:

  

  In the figure above, PQRS is a circle with ST//RQ. Find the value of x PT = PS.

  Options:
  A) 70${}^{\circ }$
  B) 55${}^{\circ }$
  C) 40${}^{\circ }$
  D) 35${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1589: 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 1590: If (g(y)) = $\frac{y-3}{11}$ + $\frac{11}{y^2-9}$. what is g(y + 3)? Options:
  A) $\frac{y}{11}+\frac{11}{y(y+6)}$
  B) $\frac{y}{11}+\frac{11}{y(y+3)}$
  C) $\frac{y+30}{11}+\frac{11}{y(y+3)}$
  D) $\frac{y+3}{11}+\frac{11}{y(y-6)}$
  Show Answer
  The correct answer is A .