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 1731: A binary operation $\oplus$ is defines on the set of all positive integers by a $\oplus$ b = ab for all positive integers a, b. Which of the following properties does NOT hold? Options:
  A) closure
  B) identity
  C) positive
  D) inverse
  Show Answer
  The correct answer is D .
• Question 1732: In a class of 120 students, 18 of them scored an A grade in mathematics. If the section representing the A grade students on a pie chart has angle Z^o at the centre of the circle, what is Z? Options:
  A) 15
  B) 27
  C) 50
  D) 52
  E) 54
  Show Answer
  The correct answer is E .
• Question 1733:

  If y = 23${}_{\text{five}}$ + 101${}_{\text{three}}$, find y, leaving your answer in base two

  Options:
  A) 1110
  B) 10111
  C) 11101
  D) 111100
  Show Answer
  The correct answer is B .
• Question 1734: 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 1735:

  Given that S =$3t^2$ + 5t - 10 is displacement of a particle in metres, calculate it initial velocity.

  Options:
  A) 10m/s
  B) 2m/s
  C) 5m/s
  D) 6m/s
  Show Answer
  The correct answer is C .
• Question 1736: x is a point due east of point Y on a coast Z is another point on the coast but 63m due south of y. If the distance ZX is 12Km. Calculate the bearing of Z from X Options:
  A) 240^o
  B) 210^o
  C) 150^o
  D) 60^o
  Show Answer
  The correct answer is B .
• Question 1737: In how many ways can a delegation of 3 be chosen from 5 men and 3 women. If at least 1 man and 1 woman must be included? Options:
  A) 15
  B) 28
  C) 30
  D) 45
  Show Answer
  The correct answer is D .
• Question 1738: The locus of a point P which moves on one side only of a straight line XY so that ∠XPY = 90${}^{\circ }$ is Options:
  A) a circle
  B) a semicircle
  C) an arc of a circle through X, Y
  D) the perpendicular bisector of XY
  Show Answer
  The correct answer is B .
• Question 1739: An amount of money is shared among P,Q and R such that for every 3P gets, Q gets 2 and for every 1Q gets, R gets 4. Find P: Q : R Options:
  A) 3 : 1 : 4
  B) 3 : 2 : 1
  C) 3 : 2 : 4
  D) 3 : 3 : 4
  E) 3 : 2 : 8
  Show Answer
  The correct answer is E .
• Question 1740:

  

  PQRST is a regular pentagon and PQVU is a rectangle with U and V lying on TS and SR respectively as shown in the diagram. Calculate TUP

  Options:
  A) 18${}^{\circ }$
  B) 54${}^{\circ }$
  C) 90${}^{\circ }$
  D) 108${}^{\circ }$
  Show Answer
  The correct answer is B .