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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 143 · 40 questions
TalentJR

The method (Think in totals): Average = total ÷ how many; total = average × how many. A number added or removed: compare the new total with the old total. Two groups together: add the two totals, then divide by everyone.

NameDateTime takenScore ___ / 40
  1. 1.The average of 8 numbers is 25. When one more number is added, the average becomes 28. What number was added?
  2. 2.The average weight of 11 children is 38 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.Marks of 4 friends in a quiz: 76, 69, 60, 63. What is their average mark?
  4. 4.Marks of 6 friends in a quiz: 37, 44, 54, 41, 45, 55. What is their average mark?
  5. 5.Marks of 4 friends in a quiz: 28, 21, 31, 52. What is their average mark?
  6. 6.The average of 4 numbers is 46. When one more number is added, the average becomes 47. What number was added?
  7. 7.Arjun’s batting average after 12 innings is 42 runs. How many runs must Arjun score in the next innings to raise the average to 43?
  8. 8.A shop sells an average of 55 kg of sugar a day for 6 days, and then 27 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  9. 9.A shop sells an average of 31 kg of sugar a day for 3 days, and then 23 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
  10. 10.Pooja’s batting average after 8 innings is 43 runs. How many runs must Pooja score in the next innings to raise the average to 44?
  11. 11.Marks of 4 friends in a quiz: 45, 40, 31, 44. What is their average mark?
  12. 12.Karan’s batting average after 7 innings is 41 runs. How many runs must Karan score in the next innings to raise the average to 46?
  13. 13.The average of 6 numbers is 58. When one more number is added, the average becomes 60. What number was added?
  14. 14.The average of 7 numbers is 30. When one more number is added, the average becomes 36. What number was added?
  15. 15.Farhan’s batting average after 11 innings is 29 runs. How many runs must Farhan score in the next innings to raise the average to 34?
  16. 16.Marks of 4 friends in a quiz: 81, 81, 81, 61. What is their average mark?
  17. 17.A shop sells an average of 42 kg of sugar a day for 6 days, and then 51 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  18. 18.A shop sells an average of 51 kg of sugar a day for 6 days, and then 79 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  19. 19.The average weight of 12 children is 30 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.The average of 4 numbers is 21. When one more number is added, the average becomes 25. What number was added?
  21. 21.A shop sells an average of 46 kg of sugar a day for 3 days, and then 21 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  22. 22.A shop sells an average of 20 kg of sugar a day for 4 days, and then 55 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  23. 23.Marks of 4 friends in a quiz: 38, 40, 55, 71. What is their average mark?
  24. 24.The average weight of 12 children is 27 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.A shop sells an average of 34 kg of sugar a day for 6 days, and then 54 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  26. 26.A shop sells an average of 32 kg of sugar a day for 3 days, and then 72 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  27. 27.The average of 6 numbers is 17. When one more number is added, the average becomes 18. What number was added?
  28. 28.The average of 7 numbers is 18. When one more number is added, the average becomes 22. What number was added?
  29. 29.The average of 6 numbers is 39. When one more number is added, the average becomes 45. What number was added?
  30. 30.Marks of 5 friends in a quiz: 94, 82, 79, 97, 63. What is their average mark?
  31. 31.The average of 5 numbers is 24. When one more number is added, the average becomes 26. What number was added?
  32. 32.Marks of 5 friends in a quiz: 65, 59, 63, 72, 66. What is their average mark?
  33. 33.Marks of 4 friends in a quiz: 26, 50, 39, 29. What is their average mark?
  34. 34.Marks of 4 friends in a quiz: 42, 48, 55, 55. What is their average mark?
  35. 35.Marks of 6 friends in a quiz: 66, 74, 46, 70, 64, 40. What is their average mark?
  36. 36.Marks of 4 friends in a quiz: 51, 68, 46, 59. What is their average mark?
  37. 37.Tara’s batting average after 11 innings is 22 runs. How many runs must Tara score in the next innings to raise the average to 23?
  38. 38.A shop sells an average of 48 kg of sugar a day for 5 days, and then 60 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  39. 39.A shop sells an average of 58 kg of sugar a day for 3 days, and then 38 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  40. 40.A shop sells an average of 63 kg of sugar a day for 3 days, and then 69 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?

Answer key

  1. 52
  2. 36
  3. 67
  4. 46
  5. 33
  6. 51
  7. 55
  8. 41
  9. 26
  10. 52
  11. 40
  12. 81
  13. 72
  14. 78
  15. 89
  16. 76
  17. 45
  18. 65
  19. 28
  20. 41
  21. 36
  22. 41
  23. 51
  24. 26
  25. 39
  26. 52
  27. 24
  28. 50
  29. 81
  30. 83
  31. 36
  32. 65
  33. 36
  34. 50
  35. 60
  36. 56
  37. 34
  38. 54
  39. 50
  40. 66

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