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 631: A straight line makes an angle of 30° with the positive x-axis and cuts the y-axis at y = 5. Find the equation of the straight line. Options:
  A) y = (x/10) + 5
  B) y = x + 5
  C) √3y = - x + 5√3
  D) √3y = x + 5√3
  Show Answer
  The correct answer is D .
• Question 632:

  

  In the figure, PQRS is a circle. If chords QR and RS are equal, calculate the value of x.

  Options:
  A) 80${}^{\circ }$
  B) 60${}^{\circ }$
  C) 45${}^{\circ }$
  D) 40${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 633: Evaluate 1011²₂ - 101²₂ Options:
  A) 110000₂
  B) 110₂
  C) 1100000₂
  D) 11000₂
  Show Answer
  The correct answer is C .
• Question 634: From the diagram above, find the bearing of R and S Options:
  A) 226${}^{\circ }$
  B) 224${}^{\circ }$
  C) 136${}^{\circ }$
  D) 134${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 635:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .
• Question 636:

  A trader realises 10x - x${}^2$ Naira profit from the sale of x bags of corn. How many bags will give him the maximum profit?

  Options:
  A) 7
  B) 6
  C) 5
  D) 4
  Show Answer
  The correct answer is C .
• Question 637: Simplify [1 ÷ (x + 1)] - [2 ÷ (x - 1)] + [3 ÷ (x² - 1)] Options:
  A) - 3x ÷ (x² - 1)
  B) - x ÷ (x² -1)
  C) x ÷ (x² - 1)
  D) (x + 1) ÷ (x² - 1)
  E) (x + 4) ÷ (x² - 1)
  Show Answer
  The correct answer is B .
• Question 638:

  

  In the diagram PQ is parallel to RS. What is the value of $\alpha +\beta +\gamma$

  Options:
  A) 180${}^{\circ }$
  B) 90${}^{\circ }$
  C) 360${}^{\circ }$
  D) 200${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 639: 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 .
• Question 640: Find the value of X if $\frac{\sqrt{2}}{x+\sqrt{2}}=\frac{1}{x-\sqrt{2}}$ Options:
  A) 3√2+4
  B) 3√2-4
  C) 3-2√2
  D) 4+2√2
  Show Answer
  The correct answer is A .