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 1711: 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 1712:

  

  The shaded area in the diagram above is represented by

  Options:
  A) {(x,y) : y - 3x < -6}
  B) {(x,y) : y + 3x < 6}
  C) {(x,y) : y + 3x < -6}
  D) {(x,y) : y - 3x < 6}
  Show Answer
  The correct answer is B .
• Question 1713: If s = $\sqrt{(\frac{a^2}{x^2}-\frac{b^2}{x^2})}$what does y equal? Options:
  A) $\sqrt{[(b^2-a^2)]÷(s^2-x^2)}$
  B) $\sqrt{[(b^2-a^2)÷(s^2\times 2)]}$
  C) $\sqrt{[x^2-a^2-b^2]÷s}$
  D) $[x^2-a^2-b^2]÷s$
  E) $\sqrt{[(b^2\times 2)÷(s^2\times 2-a^2)]}$
  Show Answer
  The correct answer is E .
• Question 1714: In a restaurant, the cost of providing a particular type of food is partly constant and partially inversely proportional to the number of people. If cost per head for 100 people is 30k and the cost for 40 people is 60k, Find the cost for 50 people? Options:
  A) 15k
  B) 20k
  C) 50k
  D) 40k
  E) 45k
  Show Answer
  The correct answer is C .
• Question 1715:

  If x is positive real number, find the range of values for which $\frac{1}{3x}$ + $\frac{1}{2}$x = $\frac{2+3x}{6x}$ > $\frac{1}{4x}$

  Options:
  A) x > -$\frac{1}{6}$
  B) x > 0
  C) 0 < x < 6
  D) 0 < x <$\frac{1}{6}$
  Show Answer
  The correct answer is A .
• Question 1716: A cinema halll contains a certain number of people. If 25/2% are children, 95/2% are men and 84 are women, find the number of men in the hall. Options:
  A) 63
  B) 84
  C) 113
  D) 133
  Show Answer
  The correct answer is D .
• Question 1717: Simplify $\frac{\sqrt{2}}{\sqrt{3}-\sqrt{2}}$ - $\frac{3-2}{\sqrt{3}+\sqrt{2}}$ Options:
  A) 2$\sqrt{2}-\sqrt{3}$
  B) 3($\sqrt{6}$ - 1)
  C) $\sqrt{6}$ - 3
  D) -$\frac{1}{2}$
  E) $\frac{-\sqrt{3}}{\sqrt{2}-\sqrt{2}}$
  Show Answer
  The correct answer is B .
• Question 1718:

  

  The distribution of colours of beads in a bowl is given above. What is the probability that a bead selected at random will be blue or white?

  Options:
  A) 7/15
  B) 2/5
  C) 1/3
  D) 1/15
  Show Answer
  The correct answer is C .
• Question 1719: If two smaller sides of a right angled triangle are 4cm and 5cm, find its area Options:
  A) 10 cm²
  B) 6 cm²
  C) 24 cm²
  D) 8 cm²
  Show Answer
  The correct answer is A .
• Question 1720: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .