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 2731:

  Calculate the perimeter of a sector of a circle of radius 9cm and angle 36^o.

  Options:
  A) 18cm
  B) (18 + $\frac{9\pi }{5}$)cm
  C) (9 + $\frac{9\pi }{5}$)cm
  D) $\frac{9\pi }{5}$cm
  Show Answer
  The correct answer is B .
• Question 2732: 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 2733:

  Find the area bounded by the curve y = x(2-x). The x-axis, x = 0 and x = 2.

  Options:
  A) 4 sq units
  B) 2 sq units
  C) $\frac{4}{3}$ sq units
  D) $\frac{1}{3}$ sq units
  Show Answer
  The correct answer is C .
• Question 2734: Find the positive number n such that thrice its square is equal to 12 times the number. Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is D .
• Question 2735:

  

  The area under the speed time graph given the total distance covered by car. What is the average velocity to two places of decimals?

  Options:
  A) 17.72 meter/sec.
  B) 21.67 meters/sec
  C) 2.5 meter/sec.
  D) 20.45 meters/sec.
  E) 13.33 meter/sec.
  Show Answer
  The correct answer is D .
• Question 2736:

  

  In the figure, the line segment ST is tangent to two circles at S and T. O and Q are the centres of the circles with OS = 5cm. QT = 2cm and OR = 14cm. Find ST

  Options:
  A) 7 $\sqrt{3}$cm
  B) 12.9cm
  C) $\sqrt{87}$cm
  D) 7cm
  Show Answer
  The correct answer is B .
• Question 2737: The annul profits of a transport business were divided between the partners A and B in the ratio 3 : 5. If B received ₦3000 more than A, the total profit was Options:
  A) ₦5000
  B) ₦1800
  C) ₦12000
  D) ₦24000
  E) ₦8000
  Show Answer
  The correct answer is C .
• Question 2738:

  Evaluate log${}_2$ 8 – log${}_3$ $\frac{1}{9}$

  Options:
  A) -1 1$\frac{1}{2}$
  B) -1
  C) 1
  D) 5
  Show Answer
  The correct answer is D .
• Question 2739: If 25a² = 5^-1 × 125. Find the value of a? Options:
  A) a = -1
  B) a = 1
  C) a = ±1
  D) a = ±5
  E) a = 25
  Show Answer
  The correct answer is C .
• Question 2740:

  

  In the diagram, PQRS is a circle center O. PQR is a diameter and ∠PRQ = 40^o. Calculate ∠QSR.

  Options:
  A) 30^o
  B) 40^o
  C) 45^o
  D) 50^o
  Show Answer
  The correct answer is D .