Mathematics 2021 Past Questions | WAEC

Study the following Mathematics past questions and answers for JAMBWAEC  NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.

31. A trapezium of sides 10cm and 21cm and height 8cm is inscribed in a circle of radius 7cm, calculate the area of the region not covered by the trapezium (take π=22/7)

  • A. 84cm2
  • B. 80cm2
  • C. 30cm2
  • D. 94cm2

32.   Find, correct to two decimal places, the mean of 1 1/2, 2 2/3, 3 3/4, 4 4/5 and 5 5/6

  • A. 3.71
  • B. 3.70
  • C. 3.69
  • D. 3.72

33. A cyclist moved at a speed of X km/h for 2 He then increased his speed by 2 km/h for the next 3 hours. If the total distance covered is 36 km, calculate his initial speed, X

  • A. 12km/h
  • B. 3km/h
  • C. 3km/h
  • D.6km/h

34.  Find the value of (x+y) in the diagram

  • A. 215o
  • B. 70o
  • C. 135o
  • D. 145o

35.  In the diagram, MP is a tangent to the circle NQR, /PNQ= 64o and |RQ| = |RN find the angle marked x.

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  • A. 22
  • B. 24
  • C. 36
  • D. 26

36.  find the first quartile of 8, 7, 9, 11, 8 7, 9, 6 and 8

 

  • A. 8.5
  • B. 7.0
  • C. 7.5
  • D. 8.0

37. In the diagram, PQRS is a circle, find the value of x.

  • A. 50o
  • B. 50o
  • C. 80o
  • D. 50o

38.  A cone has a base radius of 8cm and height 11cm. calculate, correct to two decimal places, the curved surface area. Take π=22/7

  • A. 341.98cm2
  • B. 276.57cm2
  • C. 201.14cm2
  • D. 477.71cm2

39. Given that sin x =3/5, 0<x<90o, evaluate (tan x +2 cos x)

  • A.2  11/20
  • B. 2 7/20
  • C. 11/20
  • D. 1/20

40. In the diagram, EC is a diameter of the circle ABCDE. If angle ABC= 158o find angle ADE.

  • A. 112o
  • B. 90o
  • C. 68o
  • D. 22o

41. 

Height ()cm

160

161

162

163

164

165

No of Player

4

6

3

7

8

9

The table shows the heights of thirty seven players of a basketball team. Calculate, correct to one decimal place the mean height of the player

  • A. 163.0
  • B. 162
  • C.0 160.5
  • D. 165.0

42.  XY is a line segment with the coordinates X(-8,-12) and Y(p,q). if the midpoint of XY is (-4, -2) find the coordinates of Y

  • A. (-6,-10)
  • B. (0,8)
  • C. (4,10)
  • D.(0,4)

43. Five hundred tickets were sold for a concert. Tickets for adults and children were sold at $4.50 and $3.00 respectively. If the total receipts for the concert was $ 1,987 50, how many tickets for adults were sold?

  • A. 325
  • B. 235
  • C. 175
  • D. 400

44.  The distance (d) between two villages is more than 18 km but not more than 23 km Which of these inequalities represents the statement?

  • A. 18≤d≤23
  • B. 18<d<23
  • C. 18≤d<23
  • D. 18<d≤23

45. The pie chart represents the distribution of fruits on display in a shop. If there are 60 apples on display, how many oranges are there? 5GakE00e8sgAAAABJRU5ErkJggg==

  • A. 80
  • B. 270
  • C. 120
  • D.90
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