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 1541:

  

  In the diagram PQ is parallel to RS. What is the value of $\alpha +\beta +\gamma$

  Options:
  A) 180${}^{\circ }$
  B) 90${}^{\circ }$
  C) 360${}^{\circ }$
  D) 200${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 1542: What is the value of sin(-690)? Options:
  A) $\frac{\sqrt{3}}{2}$
  B) -$\frac{\sqrt{3}}{2}$
  C) $\frac{-1}{2}$
  D) $\frac{1}{2}$
  Show Answer
  The correct answer is D .
• Question 1543:

  

  In diagram, PQ || ST and < PQR = 120${}^{\circ }$, < RST = 130${}^{\circ }$, find the angle marked x

  Options:
  A) 50
  B) 65
  C) 70
  D) 80
  Show Answer
  The correct answer is C .
• Question 1544:

  

  The diagram above is a circle with centre C. P, Q and S are points on the circumference. PS and SR are tangents to the circle. ∠PSR = 36${}^{\circ }$. Find ∠PQR

  Options:
  A) 72${}^{\circ }$
  B) 36${}^{\circ }$
  C) 144${}^{\circ }$
  D) 54${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 1545:

  Evaluate ${}^{n^2+1}$C${}_{n+5}$ if n = 3

  Options:
  A) 55
  B) 45
  C) 35
  D) 25
  Show Answer
  The correct answer is B .
• Question 1546: Simplify 2log $\frac{2}{5}$ - log$\frac{72}{125}$ + log 9 Options:
  A) 1 - 4 log3
  B) -1 + 2 log 3
  C) -1 + 5 log2
  D) 1 - 2log 2
  Show Answer
  The correct answer is D .
• Question 1547: A chord is drawn 5 cm away from the centre of a circle of radius 13 cm. Calculate the length of the chord. Options:
  A) 7 cm
  B) 9 cm
  C) 12 cm
  D) 24 cm
  Show Answer
  The correct answer is C .
• Question 1548:
  

  Find the volume of the cylinder above
  [Take $\pi {=}^{22}{/}_7$]

  Options:
  A) 9,856 cm${}^3$
  B) 14,784 cm${}^3$
  C) 4,928 cm${}^3$
  D) 19,712 cm${}^3$
  Show Answer
  The correct answer is B .
• Question 1549: Find the value of x for which 2(3^{2x - 1}) = 162 Options:
  A) $\frac{3}{2}$
  B) $\frac{1}{2}$
  C) $\frac{5}{2}$
  D) $\frac{2}{5}$
  Show Answer
  The correct answer is C .
• Question 1550:

  

  The table above shows that the scores of a group of students in a test. If the average score is 3.5, find the value of x

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is B .