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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 594 · 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 33. When one more number is added, the average becomes 34. What number was added?
  2. 2.Marks of 5 friends in a quiz: 68, 58, 80, 77, 82. What is their average mark?
  3. 3.The average of 7 numbers is 26. When one more number is added, the average becomes 31. What number was added?
  4. 4.The average weight of 12 children is 31 kg. One child, who weighs 64 kg, leaves the group. What is the new average weight (in kg)?
  5. 5.Marks of 5 friends in a quiz: 16, 36, 15, 32, 31. What is their average mark?
  6. 6.The average of 7 numbers is 17. When one more number is added, the average becomes 23. What number was added?
  7. 7.Arjun’s batting average after 10 innings is 28 runs. How many runs must Arjun score in the next innings to raise the average to 29?
  8. 8.A shop sells an average of 21 kg of sugar a day for 5 days, and then 25 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  9. 9.The average of 7 numbers is 22. When one more number is added, the average becomes 25. What number was added?
  10. 10.The average of 5 numbers is 29. When one more number is added, the average becomes 30. What number was added?
  11. 11.Marks of 6 friends in a quiz: 33, 36, 20, 47, 29, 33. What is their average mark?
  12. 12.The average of 6 numbers is 34. When one more number is added, the average becomes 39. What number was added?
  13. 13.The average weight of 10 children is 32 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
  14. 14.Marks of 5 friends in a quiz: 34, 37, 18, 19, 7. What is their average mark?
  15. 15.Marks of 4 friends in a quiz: 28, 56, 56, 24. What is their average mark?
  16. 16.The average of 8 numbers is 20. When one more number is added, the average becomes 25. What number was added?
  17. 17.A shop sells an average of 33 kg of sugar a day for 3 days, and then 48 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  18. 18.The average of 5 numbers is 55. When one more number is added, the average becomes 58. What number was added?
  19. 19.The average of 9 numbers is 34. When one more number is added, the average becomes 36. What number was added?
  20. 20.Isha’s batting average after 9 innings is 42 runs. How many runs must Isha score in the next innings to raise the average to 47?
  21. 21.The average weight of 7 children is 45 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  22. 22.Isha’s batting average after 14 innings is 20 runs. How many runs must Isha score in the next innings to raise the average to 21?
  23. 23.The average weight of 6 children is 27 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.Marks of 6 friends in a quiz: 29, 22, 32, 20, 18, 5. What is their average mark?
  25. 25.The average weight of 8 children is 34 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.The average weight of 10 children is 32 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.The average of 9 numbers is 41. When one more number is added, the average becomes 45. What number was added?
  28. 28.A shop sells an average of 74 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)?
  29. 29.The average of 9 numbers is 15. When one more number is added, the average becomes 20. What number was added?
  30. 30.The average weight of 5 children is 37 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
  31. 31.The average weight of 5 children is 39 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  32. 32.The average of 8 numbers is 17. When one more number is added, the average becomes 19. What number was added?
  33. 33.A shop sells an average of 32 kg of sugar a day for 6 days, and then 43 kg a day for the next 5 days. What is the average sale per day for all 11 days (in kg)?
  34. 34.Farhan’s batting average after 10 innings is 20 runs. How many runs must Farhan score in the next innings to raise the average to 23?
  35. 35.Marks of 6 friends in a quiz: 66, 78, 90, 92, 81, 61. What is their average mark?
  36. 36.Marks of 4 friends in a quiz: 15, 32, 17, 24. What is their average mark?
  37. 37.The average of 6 numbers is 54. When one more number is added, the average becomes 60. What number was added?
  38. 38.Marks of 6 friends in a quiz: 62, 62, 64, 63, 54, 97. What is their average mark?
  39. 39.Marks of 6 friends in a quiz: 54, 54, 47, 47, 70, 70. What is their average mark?
  40. 40.Marks of 5 friends in a quiz: 80, 74, 81, 85, 65. What is their average mark?

Answer key

  1. 41
  2. 73
  3. 66
  4. 28
  5. 26
  6. 65
  7. 39
  8. 23
  9. 46
  10. 35
  11. 33
  12. 69
  13. 31
  14. 23
  15. 41
  16. 65
  17. 43
  18. 73
  19. 54
  20. 92
  21. 44
  22. 35
  23. 25
  24. 21
  25. 31
  26. 30
  27. 81
  28. 57
  29. 65
  30. 36
  31. 38
  32. 35
  33. 37
  34. 53
  35. 78
  36. 22
  37. 96
  38. 67
  39. 57
  40. 77

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