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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 48 · 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 23. When one more number is added, the average becomes 25. What number was added?
  2. 2.Marks of 6 friends in a quiz: 43, 18, 20, 24, 22, 59. What is their average mark?
  3. 3.The average of 4 numbers is 40. When one more number is added, the average becomes 45. What number was added?
  4. 4.A shop sells an average of 69 kg of sugar a day for 3 days, and then 27 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  5. 5.Diya’s batting average after 12 innings is 29 runs. How many runs must Diya score in the next innings to raise the average to 32?
  6. 6.A shop sells an average of 54 kg of sugar a day for 2 days, and then 26 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  7. 7.The average of 8 numbers is 33. When one more number is added, the average becomes 34. What number was added?
  8. 8.The average weight of 10 children is 29 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.Tara’s batting average after 5 innings is 43 runs. How many runs must Tara score in the next innings to raise the average to 44?
  10. 10.The average of 5 numbers is 20. When one more number is added, the average becomes 22. What number was added?
  11. 11.The average of 6 numbers is 44. When one more number is added, the average becomes 49. What number was added?
  12. 12.The average weight of 5 children is 46 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.Marks of 6 friends in a quiz: 97, 89, 100, 97, 96, 55. What is their average mark?
  14. 14.Marks of 6 friends in a quiz: 41, 21, 15, 13, 20, 58. What is their average mark?
  15. 15.Diya’s batting average after 14 innings is 49 runs. How many runs must Diya score in the next innings to raise the average to 52?
  16. 16.The average of 8 numbers is 27. When one more number is added, the average becomes 28. What number was added?
  17. 17.A shop sells an average of 61 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)?
  18. 18.The average of 9 numbers is 29. When one more number is added, the average becomes 33. What number was added?
  19. 19.The average of 4 numbers is 30. When one more number is added, the average becomes 34. What number was added?
  20. 20.The average weight of 7 children is 29 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
  21. 21.Marks of 4 friends in a quiz: 40, 66, 41, 65. What is their average mark?
  22. 22.A shop sells an average of 77 kg of sugar a day for 6 days, and then 61 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  23. 23.A shop sells an average of 29 kg of sugar a day for 6 days, and then 47 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  24. 24.A shop sells an average of 49 kg of sugar a day for 3 days, and then 40 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  25. 25.Marks of 5 friends in a quiz: 26, 13, 18, 22, 61. What is their average mark?
  26. 26.Ishaan’s batting average after 5 innings is 50 runs. How many runs must Ishaan score in the next innings to raise the average to 51?
  27. 27.A shop sells an average of 32 kg of sugar a day for 3 days, and then 62 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  28. 28.Marks of 6 friends in a quiz: 40, 37, 22, 40, 36, 11. What is their average mark?
  29. 29.Nisha’s batting average after 8 innings is 26 runs. How many runs must Nisha score in the next innings to raise the average to 27?
  30. 30.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)?
  31. 31.Marks of 4 friends in a quiz: 24, 48, 36, 36. What is their average mark?
  32. 32.Marks of 5 friends in a quiz: 66, 80, 81, 75, 33. What is their average mark?
  33. 33.The average of 4 numbers is 46. When one more number is added, the average becomes 47. What number was added?
  34. 34.Marks of 4 friends in a quiz: 6, 28, 23, 23. What is their average mark?
  35. 35.Marks of 5 friends in a quiz: 82, 71, 65, 55, 77. What is their average mark?
  36. 36.Diya’s batting average after 13 innings is 35 runs. How many runs must Diya score in the next innings to raise the average to 36?
  37. 37.Marks of 4 friends in a quiz: 40, 39, 25, 44. What is their average mark?
  38. 38.Marks of 4 friends in a quiz: 100, 88, 77, 87. What is their average mark?
  39. 39.The average weight of 5 children is 43 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.The average weight of 9 children is 31 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?

Answer key

  1. 43
  2. 31
  3. 65
  4. 41
  5. 68
  6. 40
  7. 42
  8. 28
  9. 49
  10. 32
  11. 79
  12. 43
  13. 89
  14. 28
  15. 94
  16. 36
  17. 73
  18. 69
  19. 50
  20. 27
  21. 53
  22. 73
  23. 35
  24. 43
  25. 28
  26. 56
  27. 47
  28. 31
  29. 35
  30. 43
  31. 36
  32. 67
  33. 51
  34. 20
  35. 70
  36. 49
  37. 37
  38. 88
  39. 40
  40. 29

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