FlashLearners

Education And Career Blog

  • HOME
  • APPS
  • VIDEOS
You are here: Home / O'Level / WAEC / What To Expect In Waec Mathematics And Hot Questions

What To Expect In Waec Mathematics And Hot Questions

Updated on January 11, 2021 by Isaac

2021 Waec Mathematics: What are the areas Waec will set Mathematics Questions from and how do I get Waec Mathematics 2021 OBJ And Essay Questions? Waec 2021  General Mathematics Questions is what we shall discuss here.

Prev 1 of 308 Next
  • Waec Mathematics Syllabus 2022 (Explained)
    Waec Mathematics Syllabus And Hot Topics to Cover in Waec Fully Explained. The Hot and Important Topics Waec Set Questions ...
  • WAEC 2022 Mathematics Likely Questions And Answers
    What are WAEC Mathematics Likely Questions And Answers? WAEC SSCE Likely Maths Questions Solved Correctly (Detailed ...
  • Junior Waec 2022: BECE Mathematics Questions (SOLVED)
    Junior Waec (BECE) Mathematics Past And Likely Questions Solved Correctly for All Candidates Sitting for JSS3 Exam 2022.
Prev 1 of 308 Next

Waec General Mathematics is important to every Waec 2021 Candidate. Read on for Sample Questions Waec would set in 2021 Mathematics Objective and Theory or click here for Waec 2021 Mathematics Syllabus.


Waec 2021 Maths 1 & 2 Questions And Answers

You have asked the questions, what are the areas Waec sets questions in  Mathematics? I am here to give you bold answers to your question.

To make this topic easy for you to understand, I will divide it into three sections. The three sections are:

  1. Waec 2021  Mathematics Objective Questions
  2. 2021 Waec  General Mathematics Essay Questions And Answers.
  3. Instructions To Pass Waec 2021 Examination.

Waec 2021 Maths Objective Questions

As usual, you will be given questions and options A to E to choose from. Normally, the number of objective questions (OBJ) you are to answer in Waec 2021 Mathematics Science is 50.

1. If the 2nd and 5th terms of a G.P are 6 and 48 respectively, find the sum of the first for term
A. -45
B. -15
C. 15
D. 33
E. 45

2. If sinθθ = K find tanθθ, 0o ‰‰ θθ ‰‰ 90o
A. 1-K
B. kkˆ’1kkˆ’1
C. k1ˆ’k2ˆšk1ˆ’k2
D. k1ˆ’kk1ˆ’k
E. kk2ˆ’1ˆškk2ˆ’1

3. Evaluate (101.5)2 – (100.5)2
A. 1
B. 2.02
C. 20.02
D. 202
E. 2021

4. Express the product of 0.06 and 0.09 in standard form
A. 5.4 * 10-1
B. 5.4*10-2
C. 5.4*10-3
D. 5.4*102
E. 5.4*103

5. Simplify 361/2 x 64-1/3 x 50
A. o
B. 1\24
C. 2/3
D. 11/3
E. 71/2


6. Find the quadratic equation whose roots are x = -2 or x = 7
A. x2 + 2x – 7 = 0
B. x2 – 2x + 7 = 0
C. x2 + 5 +14 = 0
D. x2 – 5x – 14 = 0
E. x2 + 5x – 14 = 0

7. A sales girl gave a change of N1.15 to a customer instead of N1.25. Calculate her percentage error
A. 10%
B. 7%
C. 8.0%
D. 2.4%
E. 10%

8. What is the probability of having an odd number in a single toss of a fair die?
A. 1/6
B. 1/3
C. 1/2
D. 2/3
E. 5/6

9. If the total surface area of a solid hemisphere is equal to its volume, find the radius
A. 3.0cm
B. 4.5cm
C. 5.0cm
D. 9.0cm

10. If 23x + 101x = 130x, find the value of x
A. 7
B. 6
C. 5
D. 4

11. Simplify: (34ˆ’2334ˆ’23) x 11515
A. 160160
B. 572572
C. 110110
D. 1710710

12. Simplify:(103ˆš5ˆšˆ’15”¾”¾”¾ˆš1035ˆ’15)2
A. 75.00
B. 15.00
C. 8.66
D. 3.87

13. The distance, d, through which a stone falls from rest varies directly as the square of the time, t, taken. If the stone falls 45cm in 3 seconds, how far will it fall in 6 seconds?
A. 90cm
B. 135cm
C. 180cm
D. 225cm

14. Which of following is a valid conclusion from the premise. “Nigeria footballers are good footballers”?
A. Joseph plays football in Nigeria therefore he is a good footballer
B. Joseph is a good footballer therefore he is a Nigerian footballer
C. Joseph is a Nigerian footballer therefore he is a good footballer
D. Joseph plays good football therefore he is a Nigerian footballer

15. On a map, 1cm represent 5km. Find the area on the map that represents 100km2.
A. 2cm2
B. 4cm2
C. 8cm2
D. 8cm2

16. Simplify; 3nˆ’1×27n+181n3nˆ’1×27n+181n
A. 32n
B. 9
C. 3n
D. 3n + 1

17. What sum of money will amount to D10,400 in 5 years at 6% simple interest?
A. D8,000.00
B. D10,000.00
C. D12,000.00
D. D16,000.00

18. The roots of a quadratic equation are 4343 and -3737. Find the equation
A. 21×2 – 19x – 12 = 0
B. 21×2 + 37x – 12 = 0
C. 21×2 – x + 12 = 0
D. 21×2 + 7x – 4 = 0

19. Find the values of y for which the expression y2ˆ’9y+18y2+4yˆ’21y2ˆ’9y+18y2+4yˆ’21 is undefined
A. 6, -7
B. 3, -6
C. 3, -7
D. -3, -7

20. Given that 2x + y = 7 and 3x – 2y = 3, by how much is 7x greater than 10?
A. 1
B. 3
C. 7
D. 17

21. Simplify; 21ˆ’xˆ’1×21ˆ’xˆ’1x
A. x+1x(1ˆ’x)x+1x(1ˆ’x)
B. 3xˆ’1x(1ˆ’x)3xˆ’1x(1ˆ’x)
C. 3x+1x(1ˆ’x)3x+1x(1ˆ’x)
D. x+1x(1ˆ’x)x+1x(1ˆ’x)

22. Make s the subject of the relation: P = S + sm2nrsm2nr
A. s = mrpnr+m2mrpnr+m2
B. s = nr+m2mrpnr+m2mrp
C. s = nrpmr+m2nrpmr+m2
D. s = nrpnr+m2nrpnr+m2

23. Factorize; (2x + 3y)2 – (x – 4y)2
A. (3x – y)(x + 7y)
B. (3x + y)(2x – 7y)
C. (3x + y)(x – 7y)
D. (3x – y)(2x + 7y)

24. The curve surface area of a cylinder, 5cm high is 110cm 2. Find the radius of its base. [Take π=227π=227]
A. 2.6cm
B. 3.5cm
C. 3.6cm
D. 7.0cm

25. The volume of a pyramid with height 15cm is 90cm3. If its base is a rectangle with dimension xcm by 6cm, find the value of x
A. 3
B. 5
C. 6
D. 8

26. Calculate the gradient of the line PQ
A. 3535
B. 2323
C. 3232
D. 5353

27. A straight line passes through the point P(1,2) and Q
(5,8). Calculate the length PQ
A. 411”¾”¾”¾ˆš411
B. 410”¾”¾”¾ˆš410
C. 217”¾”¾”¾ˆš217
D. 213”¾”¾”¾ˆš213

28. If cos θθ = x and sin 60o = x + 0.5 0o < θθ < 90o, find, correct to the nearest degree, the value of θθ
A. 32o
B. 40o
C. 60o
D. 69o

29. Age(years)Frequency13101424158165173Age(years)1314151617Frequency1024853

The table shows the ages of students in a club. How many students are in the club?
A. 50
B. 55
C. 60
D. 65

30. The marks of eight students in a test are: 3, 10, 4, 5, 14, 13, 16 and 7. Find the range
A. 16
B. 14
C. 13
D. 11

31. If log2(3x – 1) = 5, find x.
A. 2.00
B. 3.67
C. 8.67
D. 11

32. A sphere of radius rcm has the same volume as cylinder of radius 3cm and height 4cm. Find the value of r
A. 2323
B. 2
C. 3
D. 6

33. Express 1975 correct to 2 significant figures
A. 20
B. 1,900
C. 1,980
D. 2,000

34. A bag contains 5 red and 4 blue identical balls. Id two balls are selected at random from the bag, one after the other, with replacement, find the probability that the first is red and the second is blue
A. 2929
B. 518518
C. 20812081
D. 5959

35. The relation y = x2 + 2x + k passes through the point (2,0). Find the value of k
A. – 8
B. – 4
C. 4
D. 8

36. Find the next three terms of the sequence; 0, 1, 1, 2, 3, 5, 8…
A. 13, 19, 23
B. 9, 11, 13
C. 11, 15, 19
D. 13, 21, 34

37. If {X: 2 d- x d- 19; X integer} and 7 + x = 4 (mod 9), find the highest value of x
A. 2
B. 5
C. 15
D. 18

38. The sum 110112, 11112 and 10m10n02. Find the value of m and n.
A. m = 0, n = 0
B. m = 1, n = 0
C. m = 0, n = 1
D. m = 1, n = 1

39. A trader bought an engine for $15,000.00 outside Nigeria. If the exchange rate is $0.070 to N1.00, how much did the engine cost in Niara?
A. N250,000.00
B. N200,000.00
C. N150,000.00
D. N100,000.00



40. If 27x×31ˆ’x92x=127x×31ˆ’x92x=1, find the value of x.
A. 1
B. 1212
C. -1212
D. -1

41. Find the 7th term of the sequence: 2, 5, 10, 17, 6,…
A. 37
B. 48
C. 50
D. 63

42. Given that logx 64 = 3, evaluate x log8
A. 6
B. 9
C. 12
D. 24

43. If 2n = y, Find 2(2+n3)(2+n3)
A. 4y1313
B. 4yˆ’3ˆ’3
C. 2y1313
D. 2yˆ’3ˆ’3

44. Factorize completely: 6ax – 12by – 9ay + 8bx
A. (2a – 3b)(4x + 3y)
B. (3a + 4b)(2x – 3y)
C. (3a – 4b)(2x + 3y)
D. (2a + 3b)(4x -3y)

45. Find the equation whose roots are 3434 and -4
A. 4×2 – 13x + 12 = 0
B. 4×2 – 13x – 12 = 0
C. 4×2 + 13x – 12 = 0
D. 4×2 + 13x + 12 = 0

46. If m = 4, n = 9 and r = 16., evaluate mnmn – 17979 + nrnr
A. 1516516
B. 1116116
C. 516516
D. – 137483748

47. Adding 42 to a given positive number gives the same result as squaring the number. Find the number
A. 14
B. 13
C. 7
D. 6

48. Ada draws the graph of y = x2 – x – 2 and y = 2x – 1 on the same axes. Which of these equations is she solving?
A. x2 – x – 3 = 0
B. x2 – 3x – 1 = 0
C. x2 – 3x – 3 = 0
D. x2 + 3x – 1 = 0

49. The volume of a cone of height 3cm is 381212cm3. Find the radius of its base. [Take π=227π=227]
A. 3.0cm
B. 3.5cm
C. 4.0cm
D. 4.5cm

50. The dimension of a rectangular tank are 2m by 7m by 11m. If its volume is equal to that of a cylindrical tank of height 4cm, calculate the base radius of the cylindrical tank. [Take π=227π=227]
A. 14cm
B. 7m
C. 31212m
D. 13434m

51. PQRT is square. If x is the midpoint of PQ, Calculate correct to the nearest degree, LPXS
A. 53o
B. 55o
C. 63o
D. 65o

52. The angle of elevation of an aircraft from a point K on the horizontal ground 30αα. If the aircraft is 800m above the ground, how far is it from K?
A. 400.00m
B. 692.82m
C. 923.76m
D. 1,600.99m

53. The population of students in a school is 810. If this is represented on a pie chart, calculate the sectoral angle for a class of 7 students
A. 32o
B. 45o
C. 60o
D. 75o

54. The scores of twenty students in a test are as follows: 44, 47, 48, 49, 50, 51, 52, 53, 53, 54, 58, 59, 60, 61, 63, 65, 67, 70, 73, 75. Find the third quartile.
A. 62
B. 63
C. 64
D. 65

55. Which of the following is used to determine the mode of a grouped data?
A. Bar chart
B. Frequency polygon
C. Ogive
D. Histogram

56. The area of a rhombus is 110cm
A. 5.0
B. 4.0
C. 3.0
D. 2.5

57. Simplify: 3xˆ’yxy+2x+3y2xy+123xˆ’yxy+2x+3y2xy+12
A. 4x+5yˆ’xy2xy4x+5yˆ’xy2xy
B. 5yˆ’4x+xy2xy5yˆ’4x+xy2xy
C. 5x+4yˆ’xy2xy5x+4yˆ’xy2xy
D. 4xˆ’5y+xy2xy4xˆ’5y+xy2xy

58. A farmer uses 2525 of his land to grow cassava, 1313 of the remaining for yam and the rest for maize. Find the part of the land used for maize
A. 215215
B. 2525
C. 2323
D. 45

59. The rate of consumption of petrol by a vehicle varies directly as the square of the distance covered. If 4 litres of petrol is consumed on a distance of 15km. how far would the vehicle go on 9 litres of petrol?
A. 221212km
B. 30km
C. 331212km
D. 45km

60. A trader bought 100 oranges at 5 for N40.00 and 20 for N120.00. Find the profit or loss percent
A. 20% profit
B. 20% loss
C. 25% profit
D. 25% loss

Also: How to answer Waec questions very fast

General Maths Waec 2021 Theory Questions And Answers

The following are the kind of questions you should expect in Waec 2021 Mathematics Theory or Essay. They are hot cake questions:



  1. Two angles of a pentagon are in the ratio 2:3. The others are 60o each. Calculate the smaller of the two angles
  2. The radii of the base of two cylindrical tins, P and Q are r and 2r respectively. If the water level in p is 10cm high, would be the height of the same quantity of water in Q?
  3. n what modulus is it true that 9 + 8 = 5?
  4. In a cumulative frequency graph, the lower quartile is 18 years while the 60th percentile is 48 years. What percentage of the distribution is at most 18 years or greater than 48 years?
  5. In parallelogram PQRS, QR is produced to M such that |QR| = |RM|. What fraction of the area of PQMS is the area of PRMS?

That’s all for now… I shall update you when more real live questions and answers come up. However, I advice that you are hardworking so as to pass your Waec once and for all.

Read Also: How to read and pass Waec in one day

Feel free to share this article with friends today using the share buttons and don’t fail to comment using the comment box below.

Avatar

About FlashIsaac

Students Advocate, Blogger And YouTuber.

Comments

  1. onitilo maria says

    I need ur help in waec mathematics for 2022

    Reply
  2. victor says

    On victor Ejike

    Reply
  3. Tracey says

    It needs critical thinking

    Reply
    • Isaac Inegbenehi says

      Sure

      Reply
      • ejike says

        On victor

        Reply
  4. Tracey says

    We need solutions to compare with ours whether ryt or wrong

    Reply
    • ejike says

      Wrong

      Reply
  5. Tracey says

    It’s very cool

    Reply
    • Isaac Inegbenehi says

      Thank you

      Reply
  6. Nwadialor chinecherem says

    I need answers for both objective and theory please

    Reply
    • Adebayo festus says

      Please i need answers to the questions

      Reply
  7. Oluwatomisin Margaret Adeola says

    I need d answers for both obj and all d theory answer

    Reply
  8. Anonymous says

    Pls is dat d whole mathematics theory or pls I need more question

    Reply
  9. racheal says

    thanks but i need more question

    Reply
  10. Anonymous says

    It’s too difficult. Solutions please.

    Reply
  11. Orhurhu Peculiar says

    Please let it not be hard ,because it’s looks like it hard

    Reply
  12. Aliu Favour says

    OBJ answers pls

    Reply
  13. Anonymous says

    D OBJ questions re too hard we need solutions to d questions been given.

    Reply
  14. Raymond Philippa says

    Answer please

    Reply
    • Daodu Okikijesu says

      Realy nice questions but i still need to work on my self. I need answers to d questions

      Reply
  15. Ada says

    Paste the solutions to the questions .

    Reply
  16. Mujeebat adekanye says

    Thanks for this I really appreciate

    Reply
  17. Anonymous says

    I want help pls

    Reply
    • Augustine Daniel says

      Pls I need answer for both any subject

      Reply
  18. Anonymous says

    Is the maths objective not yet out?

    Reply
  19. PETER says

    I WONT TO GATE SUM ANSWER

    Reply
  20. Anonymous says

    Plz objective mathematics

    Reply
  21. Michael says

    Please the maths question is hard, so we need a solution

    Reply
    • Join oghenekume says

      Can you give me the theory answer please

      Reply
    • PETER says

      I WONT TO GATE SUM ANSWER

      Reply
  22. Anonymous says

    Please can u give the theory answ
    er ?

    Reply
  23. Blinqz says

    Nice one

    Reply
  24. Kelly blessing says

    Good but very hard there should be solving na

    Reply
  25. Matthew says

    May God bless you

    Reply
  26. Matthew says

    Thank u

    Reply
  27. Agrumon Likla Bassey says

    9 April to 24 May

    Reply
  28. Anonymous says

    It good but too hard

    Reply
  29. Ebenezer Chukwuebuka says

    Answer guild please

    Reply
  30. Lord G cee says

    answer guide please!

    Reply
  31. Shikodi Shikodi says

    omo make una post this answer nah

    Reply
  32. Onyenaka Steven says

    Let’s try

    Reply
  33. olalekan says

    simplest subject ever liverth

    Reply
    • Anonymous says

      Niz 1

      Reply
  34. Anonymous says

    Good evening i want to contribute
    the academic success by preparing questions in my field in order to enhance the educational system.

    Reply
  35. Anonymous says

    IT IS HARD

    Reply
  36. Anonymous says

    I Like Maths

    Reply
  37. Anonymous says

    I Want More

    Reply
  38. Favleen says

    I agree with that very hard

    Reply
  39. Anonymous says

    too hard

    Reply
    • Anonymous says

      yes its very hard they did not give the diagram

      Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

CHOOSE TOPIC

  • FlashLearners Quiz
  • FlashLearners Videos
  • Helpful Study Guide
  • Jamb And Direct Entry
  • Ongoing Scholarships
  • National Youth Service
  • Trending Special Posts
  • All FlashLearners Topics

Copyright © 2022 - FlashLearners · Home · About · Contact · Privacy · Disclaimer