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 941: In how many ways can a student select 2 subjects from 5 subjects? Options:
  A) $\frac{5!}{3!}$
  B) $\frac{5!}{2!2!}$
  C) $\frac{5!}{2!3!}$
  D) $\frac{5!}{2!}$
  Show Answer
  The correct answer is C .
• Question 942: Each of the interior angles of a regular polygon is 140^o. How many sides has the polygon? Options:
  A) 9
  B) 8
  C) 7
  D) 5
  Show Answer
  The correct answer is A .
• Question 943: ${\int }_{-\frac{\pi }{2}}^{\frac{\pi }{2}}$cosx dx Options:
  A) 7
  B) 1
  C) 2
  D) 3
  Show Answer
  The correct answer is B .
• Question 944:

  

  In the figure, PQ is parallel to SQ ; QS bisets < PSQ, < PQS is 65${}^{\circ }$ and < RPS is 20${}^{\circ }$. What is the size of < PRS?

  Options:
  A) 45${}^{\circ }$
  B) 35${}^{\circ }$
  C) 40${}^{\circ }$
  D) 30${}^{\circ }$
  E) 42${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 945: If y = 3 cos 4x, $\frac{dy}{dx}$ equals Options:
  A) 6 sin 8x
  B) -24 sin 4x
  C) 12 sin 4x
  D) -12 sin 4x
  Show Answer
  The correct answer is D .
• Question 946: The solution of the quadratic equation bx² + cx + a = 0 is given by Options:
  A) x = b $\pm$ $\frac{\sqrt{b^2-4ac}}{2a}$
  B) x = c $\pm$ $\frac{\sqrt{b^2-4ab}}{2b}$
  C) x = -c $\pm$ $\frac{\sqrt{c^2-4ab}}{2b}$
  D) x = -b $\pm$ $\frac{\sqrt{b^2-4ac}}{2b}$
  Show Answer
  The correct answer is C .
• Question 947: Evaluate $\int (2x+3{)}^{\frac{1}{2}}\delta x$ Options:
  A) $\frac{1}{12}(2x+3{)}^6+k$
  B) $\frac{1}{3}(2x+3{)}^{\frac{1}{2}}+k$
  C) $\frac{1}{3}(2x+3{)}^{\frac{3}{2}}+k$
  D) $\frac{1}{12}(2x+3{)}^{\frac{3}{4}}+k$
  Show Answer
  The correct answer is C .
• Question 948: Solve the following simultaneous equation for x. x² + y - 5 = 0, y - 7x + 3 = 0 Options:
  A) -2, 4
  B) 2, 4
  C) -1,8
  D) 1, -8
  Show Answer
  The correct answer is D .
• Question 949: Five people are to be arranged in a row for a group photograph. How many arrangements are the if a married couple in the group insist on sitting next to each other? Options:
  A) 48
  B) 24
  C) 20
  D) 10
  Show Answer
  The correct answer is C .
• Question 950: Calculate the perimeter, in cm, of a sector of a circle of radius 8cm and angle 45^o Options:
  A) 2$\pi$
  B) 8 + 2$\pi$
  C) 16 + 2$\pi$
  D) 16 + 16$\pi$
  Show Answer
  The correct answer is C .