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 861: Factorize a²x - b²y - b²x + a²y Options:
  A) (a - b)(x + y)
  B) (y - x)(a - b)(a + b)
  C) (x - y)(a - b)(a + b)
  D) (x + y)(a - b)(a + b)
  Show Answer
  The correct answer is D .
• Question 862: If a = 1, b = 3, solve for x in the equation $\frac{a}{a-x}$ = $\frac{b}{x-b}$ Options:
  A) $\frac{4}{3}$
  B) $\frac{2}{3}$
  C) $\frac{3}{2}$
  D) $\frac{3}{4}$
  Show Answer
  The correct answer is C .
• Question 863: A student has 5 courses to take from Mathematics and physics. There are 4 courses in Mathematics and 3 in Physics which he can choose his courses so that he takes exactly two courses in Physics? Options:
  A) 48
  B) 12
  C) 10
  D) 7
  Show Answer
  The correct answer is B .
• Question 864:

  A group of market women sell at least one of yam, plantain and maize. 12 of them sell maize, 10 sell yam and 14 sell plantain. 5 sell plantain and maize, 4 sell yam and maize, 2 sell yam and plantain only while 3 sell all the three items. How many women are in the group?

  Options:
  A) 25
  B) 19
  C) 18
  D) 17
  Show Answer
  The correct answer is A .
• Question 865: Solve the simultaneous linear equations: 2x + 5y = 11, 7x + 4y = 2 Options:
  A) x = -8, y = 1
  B) x = -2, y = 4
  C) x = $\frac{-34}{27}$, y = $\frac{73}{27}$
  D) x = 7, y = -9
  Show Answer
  The correct answer is C .
• Question 866:

  Factorize: $16x^4-y^4$

  Options:
  A) $(2x-y)(2x+y)(4x^2+y^2)$
  B) $(2x+y)(2x+y)(4x^2+y^2)$
  C) $(2x-y)(2x-y)(4x^2+y^2)$
  D) $(2x-y)(2x+y)(4x^2-y^2)$
  Show Answer
  The correct answer is A .
• Question 867: An arc subtends an angle of 50${}^{\circ }$ at the center of circle of radius 6cm. Calculate the area of the sector formed Options:
  A) ¹⁰⁰/₇
  B) ⁸⁰/₇
  C) ¹¹⁰/₇
  D) ⁹⁰/₇
  Show Answer
  The correct answer is C .
• Question 868:

  At what rate would a sum of N100.00 deposited for 5 years raise an interest of N7.50?

  Options:
  A) $\frac{1}{2}$%
  B) 2$\frac{1}{2}$%
  C) 1.5%
  D) 25%
  Show Answer
  The correct answer is C .
• Question 869: Factorize x² + 9x + 20 Options:
  A) (x − 5) ²
  B) (x + 5)(x + 4)
  C) (x – 5)(x + 3)
  D) (x + 3) ²
  Show Answer
  The correct answer is B .
• Question 870:

  

  PMN and PQR are two secants of the circle MQTRN and PT is a tangent. If PM = 5cm, PN = 12cm and PQ = 4.8cm, calculate the respective lengths of PR and PT in centimeters

  Options:
  A) 7.3, 5.9
  B) 7.7, 12.5
  C) 12.5, 7.7
  D) 5.9, 7.3
  Show Answer
  The correct answer is C .