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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 400 · 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 18. When one more number is added, the average becomes 21. What number was added?
  2. 2.The average weight of 5 children is 44 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.Kavya’s batting average after 7 innings is 21 runs. How many runs must Kavya score in the next innings to raise the average to 23?
  4. 4.Marks of 6 friends in a quiz: 82, 73, 94, 68, 95, 80. What is their average mark?
  5. 5.A shop sells an average of 36 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)?
  6. 6.Rohan’s batting average after 7 innings is 41 runs. How many runs must Rohan score in the next innings to raise the average to 43?
  7. 7.Rohan’s batting average after 9 innings is 27 runs. How many runs must Rohan score in the next innings to raise the average to 30?
  8. 8.Marks of 5 friends in a quiz: 68, 50, 64, 68, 60. What is their average mark?
  9. 9.Meera’s batting average after 10 innings is 44 runs. How many runs must Meera score in the next innings to raise the average to 49?
  10. 10.Marks of 4 friends in a quiz: 74, 53, 79, 62. What is their average mark?
  11. 11.Marks of 6 friends in a quiz: 90, 90, 83, 104, 80, 93. What is their average mark?
  12. 12.A shop sells an average of 63 kg of sugar a day for 3 days, and then 79 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  13. 13.The average of 4 numbers is 47. When one more number is added, the average becomes 52. What number was added?
  14. 14.The average of 8 numbers is 25. When one more number is added, the average becomes 31. What number was added?
  15. 15.The average of 6 numbers is 60. When one more number is added, the average becomes 61. What number was added?
  16. 16.A shop sells an average of 45 kg of sugar a day for 6 days, and then 61 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  17. 17.Manav’s batting average after 14 innings is 44 runs. How many runs must Manav score in the next innings to raise the average to 45?
  18. 18.Kavya’s batting average after 7 innings is 23 runs. How many runs must Kavya score in the next innings to raise the average to 25?
  19. 19.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)?
  20. 20.Nisha’s batting average after 7 innings is 44 runs. How many runs must Nisha score in the next innings to raise the average to 45?
  21. 21.Nisha’s batting average after 8 innings is 20 runs. How many runs must Nisha score in the next innings to raise the average to 23?
  22. 22.The average weight of 5 children is 27 kg. One child, who weighs 31 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.Marks of 6 friends in a quiz: 39, 44, 49, 57, 33, 54. What is their average mark?
  24. 24.The average weight of 6 children is 29 kg. One child, who weighs 34 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.The average weight of 10 children is 28 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.Marks of 4 friends in a quiz: 40, 46, 24, 38. What is their average mark?
  27. 27.The average weight of 12 children is 48 kg. One child, who weighs 81 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.A shop sells an average of 53 kg of sugar a day for 2 days, and then 25 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  29. 29.The average of 9 numbers is 54. When one more number is added, the average becomes 57. What number was added?
  30. 30.The average of 5 numbers is 46. When one more number is added, the average becomes 51. What number was added?
  31. 31.Marks of 4 friends in a quiz: 73, 50, 61, 68. What is their average mark?
  32. 32.Marks of 6 friends in a quiz: 33, 39, 19, 25, 28, 24. What is their average mark?
  33. 33.Marks of 6 friends in a quiz: 86, 86, 94, 102, 98, 68. What is their average mark?
  34. 34.Marks of 4 friends in a quiz: 65, 69, 71, 63. What is their average mark?
  35. 35.Karan’s batting average after 14 innings is 25 runs. How many runs must Karan score in the next innings to raise the average to 28?
  36. 36.The average weight of 5 children is 31 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  37. 37.The average weight of 5 children is 30 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
  38. 38.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)?
  39. 39.Marks of 6 friends in a quiz: 46, 61, 62, 49, 62, 80. What is their average mark?
  40. 40.The average of 9 numbers is 20. When one more number is added, the average becomes 21. What number was added?

Answer key

  1. 45
  2. 42
  3. 37
  4. 82
  5. 30
  6. 57
  7. 57
  8. 62
  9. 99
  10. 67
  11. 90
  12. 71
  13. 72
  14. 79
  15. 67
  16. 53
  17. 59
  18. 39
  19. 37
  20. 52
  21. 47
  22. 26
  23. 46
  24. 28
  25. 26
  26. 37
  27. 45
  28. 32
  29. 84
  30. 76
  31. 63
  32. 28
  33. 89
  34. 67
  35. 70
  36. 28
  37. 28
  38. 35
  39. 60
  40. 30

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