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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 458 · 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 6 numbers is 44. When one more number is added, the average becomes 45. What number was added?
  2. 2.The average of 6 numbers is 35. When one more number is added, the average becomes 41. What number was added?
  3. 3.The average weight of 5 children is 27 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
  4. 4.The average weight of 11 children is 29 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  5. 5.Marks of 4 friends in a quiz: 61, 52, 56, 95. What is their average mark?
  6. 6.Marks of 5 friends in a quiz: 11, 18, 10, 22, 49. What is their average mark?
  7. 7.The average of 7 numbers is 21. When one more number is added, the average becomes 25. What number was added?
  8. 8.A shop sells an average of 20 kg of sugar a day for 6 days, and then 65 kg a day for the next 4 days. What is the average sale per day for all 10 days (in kg)?
  9. 9.A shop sells an average of 37 kg of sugar a day for 4 days, and then 57 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  10. 10.Marks of 5 friends in a quiz: 35, 33, 51, 52, 34. What is their average mark?
  11. 11.Aarav’s batting average after 13 innings is 47 runs. How many runs must Aarav score in the next innings to raise the average to 50?
  12. 12.A shop sells an average of 42 kg of sugar a day for 3 days, and then 80 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  13. 13.Manav’s batting average after 7 innings is 35 runs. How many runs must Manav score in the next innings to raise the average to 40?
  14. 14.A shop sells an average of 50 kg of sugar a day for 2 days, and then 40 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  15. 15.The average of 5 numbers is 44. When one more number is added, the average becomes 48. What number was added?
  16. 16.A shop sells an average of 56 kg of sugar a day for 4 days, and then 52 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  17. 17.A shop sells an average of 36 kg of sugar a day for 4 days, and then 26 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  18. 18.A shop sells an average of 37 kg of sugar a day for 4 days, and then 22 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  19. 19.Marks of 4 friends in a quiz: 24, 43, 36, 37. What is their average mark?
  20. 20.A shop sells an average of 25 kg of sugar a day for 6 days, and then 70 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  21. 21.The average of 6 numbers is 23. When one more number is added, the average becomes 26. What number was added?
  22. 22.The average weight of 12 children is 31 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.The average of 6 numbers is 16. When one more number is added, the average becomes 19. What number was added?
  24. 24.The average of 4 numbers is 38. When one more number is added, the average becomes 39. What number was added?
  25. 25.A shop sells an average of 41 kg of sugar a day for 5 days, and then 75 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  26. 26.Marks of 6 friends in a quiz: 47, 56, 41, 48, 39, 45. What is their average mark?
  27. 27.The average of 4 numbers is 57. When one more number is added, the average becomes 63. What number was added?
  28. 28.The average of 5 numbers is 53. When one more number is added, the average becomes 54. What number was added?
  29. 29.The average of 8 numbers is 34. When one more number is added, the average becomes 38. What number was added?
  30. 30.A shop sells an average of 27 kg of sugar a day for 4 days, and then 48 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  31. 31.The average weight of 5 children is 41 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  32. 32.The average of 7 numbers is 49. When one more number is added, the average becomes 52. What number was added?
  33. 33.Marks of 6 friends in a quiz: 76, 81, 59, 62, 81, 73. What is their average mark?
  34. 34.A shop sells an average of 53 kg of sugar a day for 2 days, and then 35 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  35. 35.A shop sells an average of 69 kg of sugar a day for 6 days, and then 35 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  36. 36.A shop sells an average of 63 kg of sugar a day for 2 days, and then 49 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  37. 37.The average of 7 numbers is 22. When one more number is added, the average becomes 27. What number was added?
  38. 38.Marks of 5 friends in a quiz: 76, 49, 48, 64, 73. What is their average mark?
  39. 39.Marks of 6 friends in a quiz: 62, 45, 72, 46, 56, 73. What is their average mark?
  40. 40.Marks of 6 friends in a quiz: 37, 49, 39, 40, 39, 78. What is their average mark?

Answer key

  1. 51
  2. 77
  3. 25
  4. 26
  5. 66
  6. 22
  7. 53
  8. 38
  9. 49
  10. 41
  11. 89
  12. 61
  13. 75
  14. 45
  15. 68
  16. 54
  17. 31
  18. 28
  19. 35
  20. 40
  21. 44
  22. 29
  23. 37
  24. 43
  25. 58
  26. 46
  27. 87
  28. 59
  29. 70
  30. 34
  31. 38
  32. 73
  33. 72
  34. 44
  35. 52
  36. 56
  37. 62
  38. 62
  39. 59
  40. 47

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