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 1541: When a shirt is sold for N12000.00, a loss of 20% is recorded. How much should it be sold for to gain 20%? Options:
  A) N4800.00
  B) N400
  C) N1800.00
  D) N1500.00
  E) N960.00
  Show Answer
  The correct answer is C .
• Question 1542:

  if y = 23${}_{five}$ + 101${}_{three}$ find y leaving your answer in base two

  Options:
  A) 1110
  B) 10111
  C) 11101
  D) 111100
  Show Answer
  The correct answer is B .
• Question 1543: Simplify 4$\sqrt{27}$ + 5$\sqrt{12}$ − 3$\sqrt{75}$ Options:
  A) 7
  B) − 7
  C) − 7$\sqrt{3}$
  D) 7$\sqrt{3}$
  Show Answer
  The correct answer is D .
• Question 1544: Finds a positive value of p if the expression 2x² - px + p leaves a remainder 6 when divided by x - p and q Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is B .
• Question 1545:

  A school girl spends $\frac{1}{4}$ of her pocket money on books and $\frac{1}{3}$ on dress. What fraction remains?

  Options:
  A) $\frac{5}{6}$
  B) $\frac{7}{12}$
  C) $\frac{5}{12}$
  D) $\frac{1}{6}$
  Show Answer
  The correct answer is C .
• Question 1546: If x is jointly proportional to the cube of y and the fourth power of z. In what ratio is x increased or decreased when y is halved and z is doubled? Options:
  A) 4:1 increase
  B) 2:1 increase
  C) 1:1 no change
  D) 1:4 decrease
  E) 3:4 decrease
  Show Answer
  The correct answer is B .
• Question 1547:

  

  Use the graph of the curve y = f(x)to solve the inequality f(x) $\le$ 0

  Options:
  A) -1 $\ge$ x $\ge$ 1, x $\ge$ 2
  B) x $\le$ -1, 1 $\ge$ x $\ge$ 2
  C) x $\ge$ -1, 1 $\ge$ x $\ge$ 2
  D) x $\ge$ 2, -1 $\ge$ x $\ge$ 1
  Show Answer
  The correct answer is B .
• Question 1548: The factors of 6x - 5 - x² are Options:
  A) -(x + 3)(x + 2)
  B) (x + 5)(x + 1)
  C) (x - 5)(1 - x)
  D) (x + 5)(x + 50
  Show Answer
  The correct answer is C .
• Question 1549: A micrometer is defined as one millionth of a millimeter Options:
  A) 0.00012m
  B) 0.0000012m
  C) 0.000012m
  D) 0.00000012m
  E) 0.000000012m
  Show Answer
  The correct answer is C .
• Question 1550: If the locus of the points which are equidistant from point P and Q meets line PQ at point N, then PN equals Options:
  A) NQ
  B) ¹/₄NQ
  C) 2NQ
  D) ¹/₂NQ
  Show Answer
  The correct answer is A .