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 11: Find the principal which amounts to ₦5,500 at a simple interest in 5 years at 2% per annum. Options:
  A) ₦4,900
  B) ₦5,000
  C) ₦4,700
  D) ₦4,800
  Show Answer
  The correct answer is B .
• Question 12:

  

  On the curve, the points at which the gradient of the curve is equal to zero are

  Options:
  A) c, d, f. i, l
  B) b, e, g, j, m
  C) a, b, c, d, f, i, j, l
  D) c, d, f, h, i, l
  Show Answer
  The correct answer is B .
• Question 13:

  

  In the diagram, GI is a tangent to the circle at H. If EF||GI, calculate the size of ∠EHF.

  Options:
  A) 126°
  B) 72°
  C) 54°
  D) 28°
  Show Answer
  The correct answer is B .
• Question 14:

  What will be the result obtained when the numerator of $\frac{96}{50}$ is decreased by 37.5% and its denominator decreased by 20%.

  Options:
  A) 1.5
  B) $\frac{5}{2}$
  C) $\frac{96}{48}$
  D) 0.5
  Show Answer
  The correct answer is A .
• Question 15: The ninary operation * is defined on the set of integers p and q by p*q = pq + p + q. Find 2 * (3 * 4). Options:
  A) 59
  B) 19
  C) 67
  D) 38
  Show Answer
  The correct answer is A .
• Question 16: 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 17:

  Find the area and perimeter of a square whose length of diagonals is 20$\sqrt{2}$ cm.

  Options:
  A) 800 cm${}^2$, 80 cm
  B) 400 cm, 80 cm${}^2$
  C) 80 cm, 800 cm${}^2$
  D) 400 cm${}^2$, 80 cm
  Show Answer
  The correct answer is D .
• Question 18: If y = x Sin x, find $\frac{dy}{dx}$ when x = $\frac{\pi }{2}$ Options:
  A) $\frac{-\pi }{2}$
  B) -1
  C) 1
  D) $\frac{\pi }{2}$
  Show Answer
  The correct answer is C .
• Question 19: 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 20: If x varies directly as y³ and x = 2 when y = 1, find x when y = 5 Options:
  A) 2
  B) 10
  C) 125
  D) 250
  Show Answer
  The correct answer is D .