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 2871:

  A chord of a circle radius $\sqrt{3cm}$ subtends an angle of 60${}^{\circ }$ on the circumference of he circle. Find the length of the chord

  Options:
  A) $\frac{\sqrt{3}}{2}$
  B) $\frac{3}{2}$
  C) 3
  D) $\sqrt{3}$cm
  Show Answer
  The correct answer is D .
• Question 2872: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 2873: The probability of an event P is $\frac{3}{4}$ while that of another event Q is $\frac{1}{6}$. If the probability of both P and Q is $\frac{1}{2}$. What is the probability of either P or Q. Options:
  A) $\frac{1}{96}$
  B) $\frac{1}{8}$
  C) $\frac{5}{6}$
  D) $\frac{11}{12}$
  Show Answer
  The correct answer is C .
• Question 2874: $\frac{0.0001432}{1940000}$ = k x 10ⁿ where 1 $\le$ k < 10 and n is a whole number. The values K and n are Options:
  A) 7.381 qnd -11
  B) 2.34 and 10
  C) 3.871 and 2
  D) 7.831 and -11
  Show Answer
  The correct answer is A .
• Question 2875:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .
• Question 2876: Two triangles have the same areas if Options:
  A) two sides in one triangle are equal to two sides in the other
  B) three sides in one triangle are equal to three sides in the other
  C) two angles in the triangle are equal to two angles in the other
  D) three angles in one triangle are equal to three angles in the other
  E) one side and the opposite angle in one triangle are equal to one side and the opposite angle in the other
  Show Answer
  The correct answer is D .
• Question 2877:

  

  In the diagram above, EFGH is a circle center O. Fh is a diameter and GE is a chord which meets FH at right angle at the point N. If NH = 8cm and EG = 24cm, calculate FH.

  Options:
  A) 16 cm
  B) 20 cm
  C) 26 cm
  D) 32 cm
  Show Answer
  The correct answer is D .
• Question 2878: The nth term of the sequence ³/₂, 3, 7, 16, 35, 74 ..... is Options:
  A) 5 . 2^n-2 - n
  B) 5 . 2^n-2 - (n+1) / 2
  C) 3 . 2^n-2
  D) ³/₂ n
  Show Answer
  The correct answer is A .
• Question 2879: 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 2880: Find the capacity in litres of a cylindrical well of radius 1 meter and depth 14 metres. Options:
  A) 44 000 litres
  B) 4400 litres
  C) 440 litres
  D) 44 litres
  Show Answer
  The correct answer is C .