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 1181: Solve for x in the equation x³ - 5x² - x + 5 = 0 Options:
  A) 1, - 1, or 5
  B) 1, 1, or -5
  C) -1, 1, or -5
  D) 1, 1, or 5
  Show Answer
  The correct answer is A .
• Question 1182:

  

  In the diagram, PR is a diameter of the circle PQRS. PST and QRT are straight lines. Find QRS

  Options:
  A) 20${}^{\circ }$
  B) 25${}^{\circ }$
  C) 30${}^{\circ }$
  D) 35${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1183: An isosceles triangle of sides 13cm, 13cm, 10cm is inscribed in a circle. What is the radius of the circle? Options:
  A) 7cm
  B) 12cm
  C) 8cm
  D) 7cm
  E) 69cm
  Show Answer
  The correct answer is A .
• Question 1184:

  Reach each number to two significant figures and then evaluate $\frac{0.02174\times 1.2047}{0.023789}$

  Options:
  A) 0
  B) 0.9
  C) 1.1
  D) 1.2
  Show Answer
  The correct answer is C .
• Question 1185: A container has 30 gold medals, 22 silver medals and 18 bronze medals. If one medals is selected at the random from the container, what is the probability that it is not a gold medal? Options:
  A) 9/35
  B) 11/35
  C) 4/7
  D) 3/7
  Show Answer
  The correct answer is C .
• Question 1186:

  Simplify $\sqrt{27}$ + $\frac{3}{\sqrt{3}}$

  Options:
  A) 4$\sqrt{3}$
  B) $\frac{4}{\sqrt{3}}$
  C) 3$\sqrt{3}$
  D) $\frac{\sqrt{3}}{4}$
  Show Answer
  The correct answer is A .
• Question 1187:

  The area A of a circle is increasing at a constant rate of 1.5 cm${}^2{s}^{-1}$. Find, to 3 significant figures, the rate at which the radius r of the circle is increasing when the area of the circle is 2 cm${}^2$.

  Options:
  A) 0.200 cms${}^{-1}$
  B) 0.798 cms${}^{-1}$
  C) 0.300 cms${}^{-1}$
  D) 0.299 cms${}^{-1}$
  Show Answer
  The correct answer is D .
• Question 1188: If $\sqrt{3^x}$ = $\sqrt{9}$ then the value of x is: Options:
  A) $\frac{3}{4}$
  B) $\frac{4}{3}$
  C) $\frac{1}{3}$
  D) $\frac{2}{3}$
  E) $\frac{1}{2}$
  Show Answer
  The correct answer is E .
• Question 1189: An arc of a circle of length 22 cm subtends an angle of 3x${}^{\circ }$ at the center of the circle. Find the value of x if the diameter of the circle is 14 cm Options:
  A) 60${}^{\circ }$
  B) 120${}^{\circ }$
  C) 180${}^{\circ }$
  D) 30${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 1190:

  If the mean of 4, y, 8 and 10 is 7. Find y?

  Options:
  A) 6
  B) 10
  C) 7
  D) 9
  Show Answer
  The correct answer is A .