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 1231:

  An equilateral triangle of side √3cm is inscribed in a circle. Find the radius of the circle.

  Options:
  A) 2/3 cm
  B) 2 cm
  C) 1 cm
  D) 3 cm
  Show Answer
  The correct answer is C .
• Question 1232: The radius of a circle is increasing at the rate of 0.02cms^-1. Find the rate at which the area is increasing when the radius of the circle is 7cm. Options:
  A) 0.75cm²S^-1
  B) 0.53cm²S^-1
  C) 0.35cm²S^-1
  D) 0.88cm²S^-1
  Show Answer
  The correct answer is D .
• Question 1233: For which of the following exterior angles is a regular polygon possible? i. 36^o ii. 18^o iii. 15^o Options:
  A) i and ii
  B) ii only
  C) ii and iii
  D) iii only
  Show Answer
  The correct answer is C .
• Question 1234: A circle with radius 5cm has its radius increasing at the rate of 0.2m/s. What will be the corresponding increase in the area? Options:
  A) 2π
  B) 5π
  C) π
  D) 4π
  Show Answer
  The correct answer is A .
• Question 1235: Factorize m³ - 2m² - m + 2 Options:
  A) (m² + 1)(m - 2)
  B) (m - 1)(m + 1)(m + 2)
  C) (m - 2)(m + 1)(m - 1)
  D) (m² + 2)(m - 1)
  Show Answer
  The correct answer is C .
• Question 1236: The letters of the word MATRICULATION are cut and put into a box. One letter is drawn at random from the box. Find the probability of drawing a vowel Options:
  A) $\frac{7}{13}$
  B) $\frac{5}{13}$
  C) $\frac{6}{13}$
  D) $\frac{8}{13}$
  E) $\frac{4}{13}$
  Show Answer
  The correct answer is C .
• Question 1237:

  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 1238: Evaluate 21.05347 - 1.6324 x 0.43 to 3 decimal places Options:
  A) 20.980
  B) 20.351
  C) 20.981
  D) 20.352
  Show Answer
  The correct answer is D .
• Question 1239: Simplify $\frac{324-4x^2}{2x+18}$ Options:
  A) 2(x - 9)
  B) 2(9 + x)
  C) 81 - x²
  D) -2(x - 9)
  Show Answer
  The correct answer is D .
• Question 1240:

  A room is12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room

  Options:
  A) $\frac{15}{17}$
  B) $\frac{8}{17}$
  C) $\frac{8}{15}$
  D) $\frac{12}{17}$
  Show Answer
  The correct answer is A .