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 541: The ratio of the areas of similar triangles is necessarily equal to Options:
  A) the ratio of the corresponding sides
  B) the ratio of the squares on corresponsing sides
  C) the ratio of the corresponding heights of the triangles
  D) half the ratio of the corresponding heights of the triangles
  E) the ratio of the corresponding bases to the heights of the triangles
  Show Answer
  The correct answer is C .
• Question 542: Express $\frac{1}{x+1}$ - $\frac{1}{x-2}$ as a single algebraic fraction Options:
  A) $\frac{-3}{(x+1)(2-x)}$
  B) $\frac{3}{(x+1)(2-x)}$
  C) $\frac{-1}{(x+1)}$
  D) $\frac{1}{(x+1)(x-2)}$
  Show Answer
  The correct answer is A .
• Question 543: Find the range of the value of x satisfying the inequalities 5 + x $\le$ 8 and 13 + x $\ge$ 7 Options:
  A) -3 $\le$ x $\le$ 3
  B) 3 $\le$ x $\le$ 6
  C) -6 $\le$ x $\le$ 3
  D) -6 $\le$ x $\le$ -3
  Show Answer
  The correct answer is C .
• Question 544: The minimum point on the curve y = x² - 6x + 5 is at Options:
  A) (1, 5)
  B) (2, 3)
  C) (-3, -4)
  D) (3, -4)
  Show Answer
  The correct answer is D .
• Question 545:

  The angle of a sector of s circle, radius 10.5cm, is 48^o. Calculate the perimeter of the sector.

  Options:
  A) 28.8cm
  B) 25.4cm
  C) 25.6cm
  D) 29.8cm
  Show Answer
  The correct answer is D .
• Question 546:

  Solve for k in the equation ${\frac{1}{8}}^{k+2}$ = 1

  Options:
  A) 2
  B) -4
  C) -2
  D) 4
  Show Answer
  The correct answer is C .
• Question 547: A basket contains 9 apples, 8 bananas and 7 oranges. A fruit is picked from the basket, find the probability that it is neither an apple nor an orange. Options:
  A) $\frac{3}{8}$
  B) $\frac{1}{3}$
  C) $\frac{7}{24}$
  D) $\frac{2}{3}$
  Show Answer
  The correct answer is B .
• Question 548: if x is the addition of the prime numbers between 1 and 6; and y the H.C.F. of 6, 9, 15. Find the product of x and y Options:
  A) 27
  B) 30
  C) 33
  D) 90
  Show Answer
  The correct answer is B .
• Question 549:

  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 550:

  Find the solution of the equation x - 8$\sqrt{x}$ + 15 = 0

  Options:
  A) 3, 5
  B) -3, -5
  C) 9, 25
  D) -9, 25
  Show Answer
  The correct answer is C .