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 1751: Determine the value of x for which (x² - 1) > 0
  Options:
  A) x < -1 or x > 1
  B) -1 < x < 1
  C) x > 0
  D) x < -1
  Show Answer
  The correct answer is A .
• Question 1752:

  A surveyor walks 500m up a hill which slopes at an angle of 30${}^o$. Calculate the vertical height through which he rises

  Options:
  A) 252m
  B) 500m
  C) 250m
  D) 255m
  Show Answer
  The correct answer is C .
• Question 1753: The first term of an Arithmetic progression is 3 and the fifth term is 9. Find the number of terms in the progression if the sum is 81 Options:
  A) 12
  B) 27
  C) 9
  D) 4
  E) 36
  Show Answer
  The correct answer is C .
• Question 1754: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 1755:

  The difference between an exterior angle of (n - 1) sided regular polygon and an exterior angle of (n + 2) sided regular polygon is 6${}^o$, then the value of "n" is

  Options:
  A) 11
  B) 13
  C) 12
  D) 14
  Show Answer
  The correct answer is B .
• Question 1756: Simplify $\sqrt{160r^2}$ + $\sqrt{71r^4}$ + $\sqrt{100r^2}$ Options:
  A) 9r²
  B) 12$\sqrt{3r}$
  C) 13r
  D) $\sqrt{13r}$
  Show Answer
  The correct answer is C .
• Question 1757: P varies directly as the square of Q and inversely as R. If P = 36, when Q = 3 and R = 4, find P when Q = 5 and R = 2. Options:
  A) 72
  B) 100
  C) 90
  D) 200
  E) 125
  Show Answer
  The correct answer is D .
• Question 1758: A binary operation * on the set of rational numbers is defined as $x\times y=\frac{x^2-y^2}{2xy}find-5\times 3$ Options:
  A) $\frac{-8}{15}$
  B) $\frac{8}{15}$
  C) $\frac{17}{15}$
  D) $\frac{-17}{15}$
  Show Answer
  The correct answer is A .
• Question 1759: In a town of 6250 inhabitants, there were 62 births during 1984. Find the percentage birth rate. Options:
  A) 3%
  B) 1.0%
  C) 2.5%
  D) 5.40%
  Show Answer
  The correct answer is B .
• Question 1760: A man bought a second-hand photocopying machine for N34,000. He serviced is at a cost od N2,000 and then sold it i profit of 15%. What was the selling price? Options:
  A) N37,550
  B) N40,400
  C) N41,400
  D) N42,400
  Show Answer
  The correct answer is C .