Mathematics 2021 Past Questions | WAEC
Study the following Mathematics past questions and answers for JAMB, WAEC 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.
- 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?
- A. 80
- B. 270
- C. 120
- D.90
