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 2841: Find the value of x and y respectively if 3x - 5y + 5 = 0 and 4x - 7y + 8 = 0 Options:
  A) -5, -4
  B) -4,. -5
  C) 4, 5
  D) 5, 4
  Show Answer
  The correct answer is D .
• Question 2842: Simplify (6 - x - x²) ÷ (x² - 4) Options:
  A) (3 + x) ÷ (x + 2)
  B) (x - 3) ÷ (x - 2)
  C) (x - 3) ÷ (x + 3)
  D) (3 - x) ÷ (x + 2)
  E) (3 - x) ÷ (x - 2)
  Show Answer
  The correct answer is D .
• Question 2843:

  

  The diagram is a circle with centre O. Find the area of the shaded portion.

  Options:
  A) 9($\pi -2)c{m}^2$
  B) 18$\pi c{m}^2$
  C) 9$\pi c{m}^2$
  D) 36$\pi c{m}^2$
  Show Answer
  The correct answer is A .
• Question 2844: The locus of a dog tethered to a pole with a rope of 4m is a Options:
  A) circle with diameter 4m
  B) circle with radius 4m
  C) semi-circle with diameter 4m
  D) semi-circle with radius 4m
  Show Answer
  The correct answer is B .
• Question 2845: Simplify $\frac{x}{x+y}$ + $\frac{y}{x-y}$ - $\frac{x^2}{x^2-y^2}$ Options:
  A) $\frac{x}{x^2-y^2}$
  B) $\frac{y^2}{x^2-y^2}$
  C) $\frac{x^2}{x^2-y^2}$
  D) $\frac{y}{x^2-y^2}$
  Show Answer
  The correct answer is B .
• Question 2846: Evaluate ∫${}_2^{\pi }$(sec² x - tan²x)dx Options:
  A) $\frac{\pi }{2}$
  B) $\pi$ - 2
  C) $\frac{\pi }{3}$
  D) $\pi$ + 2
  Show Answer
  The correct answer is B .
• Question 2847:

  Evaluate (0.14² x 0.275) ÷ 7(0.02) to 3 decimal places.

  Options:
  A) 0.039
  B) 0.358
  C) 0.033
  D) 0.308
  Show Answer
  The correct answer is A .
• Question 2848: Find the mean of t + 2, 2t - 4, 3t + 2 and 2t. Options:
  A) t + 1
  B) 2t
  C) 2t + 1
  D) t
  Show Answer
  The correct answer is B .
• Question 2849: In how many ways can 3 seats be occupied if 5 people are willing to sit? Options:
  A) 60
  B) 20
  C) 5
  D) 120
  Show Answer
  The correct answer is A .
• Question 2850: A number is selected at random between 20 and 30, both numbers inclusive. Find the probability that the number is a prime Options:
  A) $\frac{2}{11}$
  B) $\frac{5}{11}$
  C) $\frac{6}{11}$
  D) $\frac{8}{11}$
  Show Answer
  The correct answer is A .