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 331: 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 332: Find n if log₂4 + log₂7 - log₂n = 1 Options:
  A) 10
  B) 14
  C) 27
  D) 28
  Show Answer
  The correct answer is B .
• Question 333:

  

  In the figure, FGHJ is a circle of radius 3cm centre O. FOH, GOJ are perpendicular diameters. With G as centre of an arc of a circle is drawn to pass through F and H. Find the length of the perimeter of the lunar portion shaded.

  Options:
  A) 3$\pi$$\sqrt{2-1}$cm
  B) $\frac{9}{2}$$\pi$cm
  C) 3 $\pi$(1 + $\frac{2}{2}$)
  D) 3(1 + $\frac{2}{2}$)
  Show Answer
  The correct answer is C .
• Question 334: The area of a circle of radius 4cm is equal to (Take π = 3.142 ) Options:
  A) 10.3cm²
  B) 15.7cm²
  C) 50.3cm²
  D) 17.4cm²
  Show Answer
  The correct answer is C .
• Question 335: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 336:

  

  In the diagram above, O is the centre of the circle ABC, < ABO = 26° and < BOC = 130°. Calculate < AOC.

  Options:
  A) 26°
  B) 13°
  C) 80°
  D) 102°
  Show Answer
  The correct answer is D .
• Question 337: The sum of the interior angles of a polygon is 20 right angles. How many sides does the polygon have? Options:
  A) 12
  B) 20
  C) 40
  D) 10
  Show Answer
  The correct answer is A .
• Question 338: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 339: Multiply (3$\sqrt{a}$ - 4a) by (4a + 3$\sqrt{a}$) Options:
  A) 9a + 16a²
  B) 9a – 16a²
  C) 3a + 16a²
  D) 3a - 16a²
  E) a - 16a²
  Show Answer
  The correct answer is B .
• Question 340: If log₃18 + log₃3 - log₃x = 3, Find x. Options:
  A) 1
  B) 2
  C) o
  D) 3
  Show Answer
  The correct answer is B .