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 2831:

  

  In the diagram P, Q, R, S are points on the circle RQS = 30^o. PRS = 50^o and PSQ = 20^o. What is the value of x^o + y^o?

  Options:
  A) 260^o
  B) 130^o
  C) 100^o
  D) 80^o
  Show Answer
  The correct answer is B .
• Question 2832: The mean heights of 3 groups of students consisting of 20, 16 and 14 students are 1.67m, 1.50m and 1.40m Respectively. What is the mean height of all the students? Options:
  A) 1.52m
  B) 1.53m
  C) 1.54
  D) 1.55m
  E) 1.56m
  Show Answer
  The correct answer is C .
• Question 2833: If y = (1 + x)², find $\frac{dy}{dx}$ Options:
  A) x - 1
  B) 2 + 2x
  C) 1 + 2x
  D) 2x - 1
  Show Answer
  The correct answer is B .
• Question 2834: The n^th term of the progression $\frac{4}{2}$, $\frac{7}{3}$, $\frac{10}{4}$, $\frac{13}{5}$ is ... Options:
  A) $\frac{1-3n}{n+1}$
  B) $\frac{3n+1}{n+1}$
  C) $\frac{3n+1}{n-1}$
  D) $\frac{3n-1}{n+1}$
  Show Answer
  The correct answer is B .
• Question 2835: Rationalize $\frac{2-\sqrt{5}}{3-\sqrt{5}}$ Options:
  A) $\frac{1-\sqrt{5}}{2}$
  B) $\frac{1-\sqrt{5}}{4}$
  C) $\frac{\sqrt{5}-1}{2}$
  D) $\frac{1+\sqrt{5}}{4}$
  Show Answer
  The correct answer is B .
• Question 2836: If log 3 = 0.4771 and log 2 = 0.3010, what is the value of log 12? Options:
  A) 0.0432
  B) 0.4322
  C) 1.0791
  D) 1.2552
  E) 1.5225
  Show Answer
  The correct answer is C .
• Question 2837:

  

  The graph above is represented by

  Options:
  A) y = x³ - 3x - 2
  B) y = x³ + 2x² - x - 2
  C) y = x³ - 4x² + 5x - 2
  D) y = x³ - 4x + 2
  Show Answer
  The correct answer is B .
• Question 2838: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 2839: Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places? Options:
  A) 9.60m
  B) 6.06m
  C) 2.54m
  D) 2.53m
  E) 2.00m
  Show Answer
  The correct answer is D .
• Question 2840: if (x - 1), (x + 1) and (x - 2) are factors of the polynomial ax³ + bx² + cx - 1, find a, b, c in that order. Options:
  A) -1/2, 1., 1/2
  B) 1/2, 1, 1/2
  C) 1/2, 1, -1/2
  D) 1/2, -1, 1/2
  Show Answer
  The correct answer is A .