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 741: make U the subject of the formula S = $\sqrt{\frac{6}{u}-\frac{w}{2}}$ Options:
  A) u = $\frac{12}{2s^2}$
  B) u = $\frac{12}{2s+w}$
  C) u = $\frac{12}{2s^2+w}$
  D) u = $\frac{12}{2s^2}$ + w
  Show Answer
  The correct answer is C .
• Question 742:

  Solve the following equation: $\frac{2}{(2r-1)}$ -$\frac{5}{3}$ = $\frac{1}{(r+2)}$

  Options:
  A) ( -1,$\frac{5}{2}$ )
  B) ( 1, - $\frac{5}{2}$ )
  C) ( $\frac{5}{2}$, 1 )
  D) (2,1)
  Show Answer
  The correct answer is B .
• Question 743: PQR is the diagram of a semicircle RSP with centre at Q and radius of length 3.5cm. If QPT = 60^o. Find the perimeter of the figure PTRS. $\pi$ = $\frac{22}{7}$ Options:
  A) 25cm
  B) 18cm
  C) 36cm
  D) 29cm
  E) 25.5cm
  Show Answer
  The correct answer is A .
• Question 744: ${\int }_{-\frac{\pi }{2}}^{\frac{\pi }{2}}$cosx dx Options:
  A) 7
  B) 1
  C) 2
  D) 3
  Show Answer
  The correct answer is B .
• Question 745: If y = (2x + 2)³, find $\frac{\delta x}{\delta y}$ Options:
  A) 3(2x +2)²
  B) 6(2x +2)
  C) 3(2x +2)
  D) 6(2x +2)²
  Show Answer
  The correct answer is D .
• Question 746: If P344₆ - 23P2₆ = 2PP2₆, find the value of the digit P. Options:
  A) 2
  B) 3
  C) 4
  D) 5
  Show Answer
  The correct answer is D .
• Question 747:

  

  In the diagram, EFGH is a circle centre 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) 32cm
  B) 26cm
  C) 20cm
  D) 16cm
  Show Answer
  The correct answer is B .
• Question 748:

  

  In the diagram above; O is the centre of the circle and |BD| = |DC|. If ∠DCB = 35^o, find ∠BAO.

  Options:
  A) 20^o
  B) 25^o
  C) 30^o
  D) 35^o
  E) 40^o
  Show Answer
  The correct answer is A .
• Question 749: Factorize completely y³ -4xy + xy³ - 4y Options:
  A) (y + ay)(y + 2)(y - 2)
  B) (y - xy)(y - 2)
  C) y(1 + x)(y + 2)(y -2)
  D) y(1 - x)(y + 2)(y - 2)
  Show Answer
  The correct answer is C .
• Question 750: 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 .