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 2741: Find the value of k if $\frac{k}{\sqrt{3}+\sqrt{2}}$ = k$\sqrt{3-2}$ Options:
  A) 3
  B) 2
  C) $\sqrt{3}$
  D) $\sqrt{2}$
  Show Answer
  The correct answer is D .
• Question 2742: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .
• Question 2743: If f(x) = 2(x - 3)² + 3(x - 3) + 4 and g(y) = 5 + y, find g [f(3)] and f[g(4)]. Options:
  A) 3 and 4
  B) -3 and 4
  C) -3 and -4
  D) 3 and -4
  E) 0 and 5
  Show Answer
  The correct answer is A .
• Question 2744: If cos x = $\sqrt{\frac{a}{b}}$ find coses x Options:
  A) $\frac{b}{\sqrt{b-a}}$
  B) $\sqrt{\frac{b}{a}}$
  C) $\sqrt{\frac{b}{b-a}}$
  D) $\sqrt{\frac{b-a}{a}}$
  Show Answer
  The correct answer is C .
• Question 2745: If two graphs y = px² + q and y = 2x² -1 intersect at x = 2, find the value of p in terms q. Options:
  A) $\frac{q-8}{7}$
  B) $\frac{7-q}{4}$
  C) $\frac{8-q}{2}$
  D) $\frac{7+q}{8}$
  Show Answer
  The correct answer is B .
• Question 2746:
  

  Calculate, correct to three significant figures, the length of the arc AB in the diagram above.
  [Take $\pi {=}^{22}{/}_7$]

  Options:
  A) 32.4 cm
  B) 30.6 cm
  C) 28.8 cm
  D) 30.5 cm
  Show Answer
  The correct answer is B .
• Question 2747:

  The angles of a quadrilateral are 5x-30, 4x+60, 60-x and 3x+61.find the smallest of these angles​

  Options:
  A) 5x - 30
  B) 4x + 60
  C) 60 - x
  D) 3x + 61
  Show Answer
  The correct answer is C .
• Question 2748: The perimeter of a rectangular lawn is 24m. If the area of the lawn is 35m²; how wide is the lawn? Options:
  A) 5cm
  B) 7m
  C) 12m
  D) 14m
  Show Answer
  The correct answer is A .
• Question 2749:

  Find the area bounded by the curve y = 3x² - 2x + 1, the ordinates x = 1 and x = 3 and the x-axix.

  Options:
  A) 24
  B) 22
  C) 21
  D) 20
  Show Answer
  The correct answer is D .
• Question 2750:

  

  In the diagram, STUV is a straight line. < TSY = < UXY = 40^o and < VUW = 110^o. Calculate < TYW

  Options:
  A) 150^o
  B) 140^o
  C) 130^o
  D) 120^o
  Show Answer
  The correct answer is A .