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 891: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 892: One of the interior angles of a regular polygon is 120°. Find the number of sides of the polygon Options:
  A) 3
  B) 4
  C) 6
  D) 9
  E) 12
  Show Answer
  The correct answer is C .
• Question 893:

  

  In triangles XYZ and XQP, XP = 4cm, XQ = 5cm and PQ = QY = 3cm. Find ZY

  Options:
  A) 8cm
  B) 6cm
  C) 4cm
  D) 3cm
  Show Answer
  The correct answer is B .
• Question 894: If y = $\frac{x}{x-3}$ + $\frac{x}{x+4}$ find y when x = -2 Options:
  A) -$\frac{3}{5}$
  B) $\frac{3}{5}$
  C) -$\frac{7}{5}$
  D) $\frac{2}{5}$
  Show Answer
  The correct answer is C .
• Question 895:

  ⊗	k	l	m
  k	l	m	k
  l	m	k	l
  m	k	l	m

  The identity element with respect to the multiplication shown in the table above is

  Options:
  A) o
  B) m
  C) l
  D) k
  Show Answer
  The correct answer is B .
• Question 896:

  Convert 0.04945 to two significant figures

  Options:
  A) 0.040
  B) 0.049
  C) 0.050
  D) 0.49
  Show Answer
  The correct answer is B .
• Question 897:

  If the mean of 2, 5, (x+1), (x+2), 7 and 9 is 6. Find the median

  Options:
  A) 5.5
  B) 5
  C) 6.5
  D) 6
  Show Answer
  The correct answer is C .
• Question 898: In a class of 120 students, 18 of them scored an A grade in mathematics. If the section representing the A grade students on a pie chart has angle Z^o at the centre of the circle, what is Z? Options:
  A) 15
  B) 27
  C) 50
  D) 52
  E) 54
  Show Answer
  The correct answer is E .
• Question 899: Simplify (0.09)² and give your answer correct to 4 significant figures Options:
  A) 0.81
  B) 0.081
  C) 0.0081
  D) 8.0001
  Show Answer
  The correct answer is C .
• Question 900:

  The locus of a point which moves so that it is equidistant from two intersecting straight lines is the?

  Options:
  A) perpendicular bisector of the two lines
  B) angle bisector of the two lines
  C) bisector of the two lines
  D) line parallel to the two lines
  Show Answer
  The correct answer is B .