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 1961: Find the sum of the 20 term in an arithmetic progression whose first term is 7 and last term is 117 Options:
  A) 2480
  B) 1240
  C) 620
  D) 124
  Show Answer
  The correct answer is B .
• Question 1962:

  Factorize $a^2-b^2-4a+4$

  Options:
  A) (a + b)(a − b)
  B) (a − 2 + b)(a − 2 − b)
  C) (a + 1)(a − 2 + b)
  D) (a + b)²
  Show Answer
  The correct answer is B .
• Question 1963: The radius of a circle is given as 5cm subject to an error of 0.1cm. What is the percentage error in the area of the circle? Options:
  A) $\frac{1}{25}$
  B) $\frac{1}{4}$
  C) 4
  D) 25
  Show Answer
  The correct answer is A .
• Question 1964: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 1965: A cylinder of height h and radius r is open at one end. Its surface area is Options:
  A) 2$\pi$rh
  B) $\pi$r²h
  C) 2$\pi$rh + $\pi$r²
  D) 2$\pi$rh + 2$\pi$r²
  Show Answer
  The correct answer is C .
• Question 1966:

  Find the equation of the line through the points (5, 7) parallel to the line 7x + 5y = 12.

  Options:
  A) 5x + 7y = 120
  B) 7x + 5y = 70
  C) x + y = 7
  D) 15x + 17y = 90
  Show Answer
  The correct answer is B .
• Question 1967: Factorize $6x^2-14x-12$ Options:
  A) 2(x + 3)(3x - 2)
  B) 6(x - 2)(x + 1)
  C) 2(x - 3)(3x + 2)
  D) 6(x + 2)(x - 1)
  E) (3x - 4)(2x + 3)
  Show Answer
  The correct answer is C .
• Question 1968: Find the range of 4,9,6,3,2,8,10 and 11 Options:
  A) 11
  B) 9
  C) 8
  D) 4
  Show Answer
  The correct answer is B .
• Question 1969: If cos $\theta$ = $\frac{\sqrt{3}}{2}$ and $\theta$ is less than 90^o. Calculate cos$\frac{90-\theta }{si{n}^2\theta }$ Options:
  A) $\frac{4}{\sqrt{3}}$
  B) $\sqrt{\frac{3}{2}}$
  C) $\sqrt{\frac{76}{2}}$
  D) 4$\sqrt{\frac{76}{2}}$
  Show Answer
  The correct answer is A .
• Question 1970: Two angles of a triangle are 450 each and its longest side is 12cm. Find the length of one of the other sides Options:
  A) 12cm
  B) 9$\sqrt{2}$cm
  C) 6$\sqrt{2}$cm
  D) 6cm
  E) 3$\sqrt{2}$cm
  Show Answer
  The correct answer is C .