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:

  

  In the parallelogram PQRS given, find angle < SQR

  Options:
  A) 50${}^{\circ }$
  B) 80${}^{\circ }$
  C) 80cm²
  D) 100${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 632: The currency used in a country is called 'Matimalik'(M) and is of base seven. A lady in that country bought 4 bags of rice at M56 per bag and and 3 tins of milk at M4 per tin. What is the total cost of the item she bought? Options:
  A) M246₇
  B) M242₇
  C) M236₇
  D) M341₇
  E) M338₇
  Show Answer
  The correct answer is C .
• Question 633: The solution of the quadratic equation bx² + cx + a = 0 is given by Options:
  A) x = b $\pm$ $\frac{\sqrt{b^2-4ac}}{2a}$
  B) x = c $\pm$ $\frac{\sqrt{b^2-4ab}}{2b}$
  C) x = -c $\pm$ $\frac{\sqrt{c^2-4ab}}{2b}$
  D) x = -b $\pm$ $\frac{\sqrt{b^2-4ac}}{2b}$
  Show Answer
  The correct answer is C .
• Question 634: The sum to infinity of a geometric progression is $-\frac{1}{10}$ and the first term is $-\frac{1}{8}$. Find the common ratio of the progression. Options:
  A) $-\frac{1}{5}$
  B) $-\frac{1}{4}$
  C) $-\frac{1}{3}$
  D) $-\frac{1}{2}$
  Show Answer
  The correct answer is B .
• Question 635:

  The interior angle of a regular polygon is five times the size of its exterior angle. Identify the polygon.

  Options:
  A) dodecagon
  B) enneadecagon
  C) icosagon
  D) hendecagon
  Show Answer
  The correct answer is A .
• Question 636:

  A bag contains 8 red balls and some white balls. If the probability of drawing a white ball is half of the probability of drawing a red ball then find the probability of drawing a red ball and a white ball if the balls are drawn without replacement.

  Options:
  A) $\frac{1}{3}$
  B) $\frac{2}{9}$
  C) $\frac{2}{3}$
  D) $\frac{8}{33}$
  Show Answer
  The correct answer is D .
• Question 637: Rationalize $\frac{2\sqrt{3}+3\sqrt{2}}{3\sqrt{2}-2\sqrt{3}}$ Options:
  A) 5 - 2$\sqrt{6}$
  B) 5 + 2$\sqrt{6}$
  C) 5$\sqrt{6}$
  D) 5
  Show Answer
  The correct answer is B .
• Question 638: The ratio of the length of two similar rectangular blocks is 2 : 3. If the volume of the larger block is 351cm³, then the volume of the other block is Options:
  A) 234.00 cm³
  B) 526.50 cm³
  C) 166.00 cm³
  D) 687cm³
  Show Answer
  The correct answer is A .
• Question 639: Find the locus of a point which moves such that its distance from the line y = 4 is a constant, k. Options:
  A) y = k + or - 4
  B) y = 4 + or - k
  C) y = 4 + k
  D) y = k - 4
  Show Answer
  The correct answer is A .
• Question 640: If line p = 5x + 3 is parallel to line p = wx + 5. Find the value of w. Options:
  A) 7
  B) 3
  C) 6
  D) 5
  Show Answer
  The correct answer is D .