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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 120 · 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.Marks of 6 friends in a quiz: 35, 20, 32, 18, 12, 45. What is their average mark?
  2. 2.The average weight of 8 children is 43 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.Marks of 5 friends in a quiz: 69, 82, 53, 53, 83. What is their average mark?
  4. 4.The average of 5 numbers is 19. When one more number is added, the average becomes 23. What number was added?
  5. 5.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)?
  6. 6.Marks of 4 friends in a quiz: 36, 49, 23, 28. What is their average mark?
  7. 7.The average weight of 5 children is 44 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  8. 8.The average weight of 12 children is 38 kg. One child, who weighs 71 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.The average weight of 10 children is 43 kg. One child, who weighs 70 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.The average of 6 numbers is 45. When one more number is added, the average becomes 50. What number was added?
  11. 11.The average of 5 numbers is 17. When one more number is added, the average becomes 19. What number was added?
  12. 12.Farhan’s batting average after 11 innings is 28 runs. How many runs must Farhan score in the next innings to raise the average to 32?
  13. 13.A shop sells an average of 63 kg of sugar a day for 4 days, and then 58 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  14. 14.Diya’s batting average after 12 innings is 25 runs. How many runs must Diya score in the next innings to raise the average to 26?
  15. 15.Marks of 5 friends in a quiz: 87, 85, 91, 76, 46. What is their average mark?
  16. 16.The average weight of 11 children is 31 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.A shop sells an average of 71 kg of sugar a day for 3 days, and then 62 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  18. 18.The average of 5 numbers is 46. When one more number is added, the average becomes 49. What number was added?
  19. 19.The average of 5 numbers is 28. When one more number is added, the average becomes 30. What number was added?
  20. 20.Marks of 5 friends in a quiz: 73, 99, 79, 89, 95. What is their average mark?
  21. 21.Farhan’s batting average after 14 innings is 20 runs. How many runs must Farhan score in the next innings to raise the average to 21?
  22. 22.Marks of 6 friends in a quiz: 41, 15, 14, 19, 42, 43. What is their average mark?
  23. 23.The average weight of 12 children is 28 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.A shop sells an average of 67 kg of sugar a day for 5 days, and then 32 kg a day for the next 2 days. What is the average sale per day for all 7 days (in kg)?
  25. 25.The average weight of 11 children is 37 kg. One child, who weighs 67 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.Marks of 6 friends in a quiz: 29, 31, 26, 48, 45, 43. What is their average mark?
  27. 27.Aditya’s batting average after 12 innings is 26 runs. How many runs must Aditya score in the next innings to raise the average to 29?
  28. 28.The average of 6 numbers is 39. When one more number is added, the average becomes 42. What number was added?
  29. 29.The average of 4 numbers is 53. When one more number is added, the average becomes 58. What number was added?
  30. 30.Marks of 4 friends in a quiz: 40, 38, 29, 25. What is their average mark?
  31. 31.The average weight of 9 children is 47 kg. One child, who weighs 63 kg, leaves the group. What is the new average weight (in kg)?
  32. 32.The average weight of 10 children is 31 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.A shop sells an average of 28 kg of sugar a day for 4 days, and then 30 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  34. 34.The average of 9 numbers is 35. When one more number is added, the average becomes 39. What number was added?
  35. 35.The average weight of 5 children is 31 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  36. 36.Ishaan’s batting average after 7 innings is 31 runs. How many runs must Ishaan score in the next innings to raise the average to 34?
  37. 37.Marks of 5 friends in a quiz: 97, 76, 87, 90, 60. What is their average mark?
  38. 38.Pooja’s batting average after 6 innings is 23 runs. How many runs must Pooja score in the next innings to raise the average to 26?
  39. 39.The average weight of 6 children is 29 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.The average of 8 numbers is 19. When one more number is added, the average becomes 21. What number was added?

Answer key

  1. 27
  2. 42
  3. 68
  4. 43
  5. 36
  6. 34
  7. 43
  8. 35
  9. 40
  10. 80
  11. 29
  12. 76
  13. 60
  14. 38
  15. 77
  16. 29
  17. 65
  18. 64
  19. 40
  20. 87
  21. 35
  22. 29
  23. 25
  24. 57
  25. 34
  26. 37
  27. 65
  28. 60
  29. 78
  30. 33
  31. 45
  32. 28
  33. 29
  34. 75
  35. 29
  36. 55
  37. 82
  38. 44
  39. 27
  40. 37

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