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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 597 · 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 weight of 7 children is 37 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  2. 2.The average weight of 6 children is 36 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.A shop sells an average of 35 kg of sugar a day for 2 days, and then 55 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  4. 4.Marks of 6 friends in a quiz: 42, 48, 66, 65, 42, 61. What is their average mark?
  5. 5.The average of 9 numbers is 28. When one more number is added, the average becomes 29. What number was added?
  6. 6.The average of 5 numbers is 58. When one more number is added, the average becomes 61. What number was added?
  7. 7.A shop sells an average of 54 kg of sugar a day for 5 days, and then 40 kg a day for the next 2 days. What is the average sale per day for all 7 days (in kg)?
  8. 8.The average of 9 numbers is 42. When one more number is added, the average becomes 48. What number was added?
  9. 9.The average weight of 5 children is 30 kg. One child, who weighs 42 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.The average weight of 10 children is 47 kg. One child, who weighs 65 kg, leaves the group. What is the new average weight (in kg)?
  11. 11.A shop sells an average of 29 kg of sugar a day for 6 days, and then 33 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  12. 12.Marks of 4 friends in a quiz: 25, 46, 39, 46. What is their average mark?
  13. 13.The average of 9 numbers is 38. When one more number is added, the average becomes 43. What number was added?
  14. 14.The average of 6 numbers is 59. When one more number is added, the average becomes 61. What number was added?
  15. 15.The average of 4 numbers is 24. When one more number is added, the average becomes 25. What number was added?
  16. 16.A shop sells an average of 46 kg of sugar a day for 2 days, and then 79 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  17. 17.Rohan’s batting average after 10 innings is 29 runs. How many runs must Rohan score in the next innings to raise the average to 32?
  18. 18.Ishaan’s batting average after 7 innings is 41 runs. How many runs must Ishaan score in the next innings to raise the average to 46?
  19. 19.The average of 8 numbers is 29. When one more number is added, the average becomes 34. What number was added?
  20. 20.The average of 5 numbers is 53. When one more number is added, the average becomes 57. What number was added?
  21. 21.Saanvi’s batting average after 12 innings is 42 runs. How many runs must Saanvi score in the next innings to raise the average to 45?
  22. 22.The average weight of 6 children is 40 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.Marks of 5 friends in a quiz: 23, 26, 30, 12, 24. What is their average mark?
  24. 24.A shop sells an average of 20 kg of sugar a day for 4 days, and then 80 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  25. 25.The average of 6 numbers is 32. When one more number is added, the average becomes 38. What number was added?
  26. 26.Rohan’s batting average after 12 innings is 37 runs. How many runs must Rohan score in the next innings to raise the average to 39?
  27. 27.Meera’s batting average after 15 innings is 42 runs. How many runs must Meera score in the next innings to raise the average to 47?
  28. 28.Tara’s batting average after 10 innings is 44 runs. How many runs must Tara score in the next innings to raise the average to 48?
  29. 29.Ananya’s batting average after 15 innings is 40 runs. How many runs must Ananya score in the next innings to raise the average to 44?
  30. 30.Marks of 6 friends in a quiz: 52, 66, 49, 48, 49, 66. What is their average mark?
  31. 31.The average weight of 11 children is 40 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
  32. 32.The average of 7 numbers is 37. When one more number is added, the average becomes 42. What number was added?
  33. 33.The average of 6 numbers is 18. When one more number is added, the average becomes 19. What number was added?
  34. 34.Marks of 6 friends in a quiz: 75, 92, 87, 94, 92, 70. What is their average mark?
  35. 35.Ananya’s batting average after 5 innings is 35 runs. How many runs must Ananya score in the next innings to raise the average to 39?
  36. 36.Marks of 6 friends in a quiz: 54, 63, 77, 77, 74, 39. What is their average mark?
  37. 37.The average weight of 5 children is 42 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  38. 38.The average weight of 11 children is 41 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?
  39. 39.A shop sells an average of 72 kg of sugar a day for 6 days, and then 58 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  40. 40.Priya’s batting average after 15 innings is 22 runs. How many runs must Priya score in the next innings to raise the average to 25?

Answer key

  1. 35
  2. 34
  3. 50
  4. 54
  5. 38
  6. 76
  7. 50
  8. 102
  9. 27
  10. 45
  11. 30
  12. 39
  13. 88
  14. 73
  15. 29
  16. 68
  17. 62
  18. 81
  19. 74
  20. 77
  21. 81
  22. 39
  23. 23
  24. 56
  25. 74
  26. 63
  27. 122
  28. 88
  29. 104
  30. 55
  31. 38
  32. 77
  33. 25
  34. 85
  35. 59
  36. 64
  37. 40
  38. 39
  39. 65
  40. 70

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