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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 632 · 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 7 numbers is 57. When one more number is added, the average becomes 58. What number was added?
  2. 2.The average weight of 8 children is 45 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.Marks of 4 friends in a quiz: 40, 25, 22, 45. What is their average mark?
  4. 4.The average weight of 9 children is 34 kg. One child, who weighs 42 kg, leaves the group. What is the new average weight (in kg)?
  5. 5.The average of 9 numbers is 50. When one more number is added, the average becomes 53. What number was added?
  6. 6.Marks of 6 friends in a quiz: 38, 41, 29, 23, 23, 74. What is their average mark?
  7. 7.The average of 7 numbers is 26. When one more number is added, the average becomes 31. What number was added?
  8. 8.A shop sells an average of 29 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.Marks of 6 friends in a quiz: 78, 61, 71, 57, 60, 75. What is their average mark?
  10. 10.The average of 5 numbers is 50. When one more number is added, the average becomes 52. What number was added?
  11. 11.A shop sells an average of 74 kg of sugar a day for 3 days, and then 53 kg a day for the next 4 days. What is the average sale per day for all 7 days (in kg)?
  12. 12.The average weight of 7 children is 35 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.The average of 9 numbers is 51. When one more number is added, the average becomes 53. What number was added?
  14. 14.The average of 5 numbers is 19. When one more number is added, the average becomes 20. What number was added?
  15. 15.Zoya’s batting average after 9 innings is 33 runs. How many runs must Zoya score in the next innings to raise the average to 37?
  16. 16.Tara’s batting average after 14 innings is 42 runs. How many runs must Tara score in the next innings to raise the average to 46?
  17. 17.A shop sells an average of 34 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)?
  18. 18.Marks of 6 friends in a quiz: 54, 68, 46, 59, 69, 28. What is their average mark?
  19. 19.The average weight of 10 children is 40 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.Manav’s batting average after 5 innings is 38 runs. How many runs must Manav score in the next innings to raise the average to 43?
  21. 21.Dev’s batting average after 12 innings is 24 runs. How many runs must Dev score in the next innings to raise the average to 26?
  22. 22.Marks of 4 friends in a quiz: 34, 35, 32, 87. What is their average mark?
  23. 23.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)?
  24. 24.A shop sells an average of 45 kg of sugar a day for 6 days, and then 39 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  25. 25.The average of 7 numbers is 38. When one more number is added, the average becomes 39. What number was added?
  26. 26.The average of 5 numbers is 39. When one more number is added, the average becomes 40. What number was added?
  27. 27.The average weight of 6 children is 40 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.The average of 6 numbers is 47. When one more number is added, the average becomes 51. What number was added?
  29. 29.The average of 5 numbers is 56. When one more number is added, the average becomes 60. What number was added?
  30. 30.A shop sells an average of 31 kg of sugar a day for 6 days, and then 25 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  31. 31.The average of 6 numbers is 36. When one more number is added, the average becomes 39. What number was added?
  32. 32.The average weight of 10 children is 46 kg. One child, who weighs 73 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.The average of 4 numbers is 58. When one more number is added, the average becomes 62. What number was added?
  34. 34.The average weight of 8 children is 38 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.A shop sells an average of 68 kg of sugar a day for 2 days, and then 26 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  36. 36.The average weight of 9 children is 39 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  37. 37.Marks of 6 friends in a quiz: 86, 89, 70, 91, 79, 53. What is their average mark?
  38. 38.Marks of 5 friends in a quiz: 28, 39, 14, 26, 38. What is their average mark?
  39. 39.The average weight of 6 children is 30 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.Farhan’s batting average after 5 innings is 24 runs. How many runs must Farhan score in the next innings to raise the average to 28?

Answer key

  1. 65
  2. 43
  3. 33
  4. 33
  5. 80
  6. 38
  7. 66
  8. 28
  9. 67
  10. 62
  11. 62
  12. 33
  13. 71
  14. 25
  15. 73
  16. 102
  17. 46
  18. 54
  19. 39
  20. 68
  21. 50
  22. 47
  23. 42
  24. 42
  25. 46
  26. 45
  27. 38
  28. 75
  29. 80
  30. 29
  31. 57
  32. 43
  33. 78
  34. 35
  35. 38
  36. 37
  37. 78
  38. 29
  39. 28
  40. 48

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