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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 599 · 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 9 numbers is 30. When one more number is added, the average becomes 35. What number was added?
  2. 2.The average of 5 numbers is 34. When one more number is added, the average becomes 35. What number was added?
  3. 3.A shop sells an average of 73 kg of sugar a day for 6 days, and then 71 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  4. 4.Marks of 6 friends in a quiz: 67, 45, 49, 54, 52, 45. What is their average mark?
  5. 5.A shop sells an average of 65 kg of sugar a day for 2 days, and then 37 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  6. 6.Saanvi’s batting average after 11 innings is 26 runs. How many runs must Saanvi score in the next innings to raise the average to 29?
  7. 7.The average weight of 11 children is 31 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
  8. 8.A shop sells an average of 59 kg of sugar a day for 5 days, and then 65 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  9. 9.The average weight of 11 children is 40 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.Marks of 6 friends in a quiz: 48, 67, 39, 39, 52, 73. What is their average mark?
  11. 11.A shop sells an average of 61 kg of sugar a day for 5 days, and then 47 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  12. 12.The average of 8 numbers is 47. When one more number is added, the average becomes 48. What number was added?
  13. 13.The average weight of 10 children is 39 kg. One child, who weighs 57 kg, leaves the group. What is the new average weight (in kg)?
  14. 14.The average weight of 5 children is 32 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
  15. 15.The average of 9 numbers is 55. When one more number is added, the average becomes 57. What number was added?
  16. 16.The average of 9 numbers is 54. When one more number is added, the average becomes 57. What number was added?
  17. 17.The average of 9 numbers is 55. When one more number is added, the average becomes 60. What number was added?
  18. 18.A shop sells an average of 30 kg of sugar a day for 6 days, and then 42 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  19. 19.Saanvi’s batting average after 12 innings is 37 runs. How many runs must Saanvi score in the next innings to raise the average to 38?
  20. 20.The average weight of 8 children is 29 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  21. 21.Marks of 6 friends in a quiz: 83, 83, 62, 73, 60, 71. What is their average mark?
  22. 22.Aarav’s batting average after 12 innings is 24 runs. How many runs must Aarav score in the next innings to raise the average to 29?
  23. 23.The average weight of 11 children is 46 kg. One child, who weighs 76 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.The average of 9 numbers is 18. When one more number is added, the average becomes 22. What number was added?
  25. 25.The average weight of 6 children is 45 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.Marks of 6 friends in a quiz: 35, 35, 16, 16, 43, 35. What is their average mark?
  27. 27.The average weight of 7 children is 31 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.The average of 5 numbers is 23. When one more number is added, the average becomes 24. What number was added?
  29. 29.The average of 5 numbers is 19. When one more number is added, the average becomes 20. What number was added?
  30. 30.Marks of 4 friends in a quiz: 77, 64, 64, 47. What is their average mark?
  31. 31.The average of 9 numbers is 16. When one more number is added, the average becomes 22. What number was added?
  32. 32.The average weight of 6 children is 34 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.Marks of 6 friends in a quiz: 70, 58, 86, 80, 66, 78. What is their average mark?
  34. 34.A shop sells an average of 72 kg of sugar a day for 5 days, and then 58 kg a day for the next 2 days. What is the average sale per day for all 7 days (in kg)?
  35. 35.The average of 9 numbers is 39. When one more number is added, the average becomes 40. What number was added?
  36. 36.Marks of 6 friends in a quiz: 46, 20, 35, 37, 41, 31. What is their average mark?
  37. 37.Marks of 6 friends in a quiz: 21, 33, 17, 18, 27, 52. What is their average mark?
  38. 38.The average of 9 numbers is 22. When one more number is added, the average becomes 23. What number was added?
  39. 39.Tara’s batting average after 13 innings is 25 runs. How many runs must Tara score in the next innings to raise the average to 29?
  40. 40.A shop sells an average of 41 kg of sugar a day for 2 days, and then 21 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?

Answer key

  1. 80
  2. 40
  3. 72
  4. 52
  5. 45
  6. 62
  7. 30
  8. 62
  9. 39
  10. 53
  11. 54
  12. 56
  13. 37
  14. 31
  15. 75
  16. 84
  17. 105
  18. 33
  19. 50
  20. 26
  21. 72
  22. 89
  23. 43
  24. 58
  25. 42
  26. 30
  27. 28
  28. 29
  29. 25
  30. 63
  31. 76
  32. 33
  33. 73
  34. 68
  35. 49
  36. 35
  37. 28
  38. 32
  39. 81
  40. 31

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