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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 343 · 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 5 numbers is 16. When one more number is added, the average becomes 18. What number was added?
  2. 2.The average of 9 numbers is 38. When one more number is added, the average becomes 42. What number was added?
  3. 3.Marks of 6 friends in a quiz: 80, 65, 94, 92, 66, 83. What is their average mark?
  4. 4.Marks of 5 friends in a quiz: 78, 75, 68, 62, 52. What is their average mark?
  5. 5.A shop sells an average of 38 kg of sugar a day for 4 days, and then 65 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  6. 6.Marks of 4 friends in a quiz: 23, 41, 29, 43. What is their average mark?
  7. 7.Marks of 6 friends in a quiz: 82, 85, 80, 59, 55, 59. What is their average mark?
  8. 8.Marks of 4 friends in a quiz: 64, 56, 65, 31. What is their average mark?
  9. 9.The average of 6 numbers is 58. When one more number is added, the average becomes 62. What number was added?
  10. 10.A shop sells an average of 35 kg of sugar a day for 6 days, and then 31 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  11. 11.A shop sells an average of 44 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)?
  12. 12.The average of 7 numbers is 18. When one more number is added, the average becomes 23. What number was added?
  13. 13.Marks of 6 friends in a quiz: 59, 76, 66, 55, 76, 70. What is their average mark?
  14. 14.A shop sells an average of 74 kg of sugar a day for 6 days, and then 68 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  15. 15.Marks of 6 friends in a quiz: 67, 77, 84, 62, 86, 50. What is their average mark?
  16. 16.The average weight of 9 children is 38 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.The average weight of 10 children is 44 kg. One child, who weighs 71 kg, leaves the group. What is the new average weight (in kg)?
  18. 18.Zoya’s batting average after 13 innings is 32 runs. How many runs must Zoya score in the next innings to raise the average to 34?
  19. 19.The average of 8 numbers is 32. When one more number is added, the average becomes 34. What number was added?
  20. 20.The average of 4 numbers is 17. When one more number is added, the average becomes 18. What number was added?
  21. 21.The average of 4 numbers is 20. When one more number is added, the average becomes 24. What number was added?
  22. 22.The average weight of 9 children is 26 kg. One child, who weighs 34 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.Marks of 6 friends in a quiz: 42, 39, 41, 62, 53, 51. What is their average mark?
  24. 24.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)?
  25. 25.The average of 6 numbers is 28. When one more number is added, the average becomes 31. What number was added?
  26. 26.Ananya’s batting average after 11 innings is 35 runs. How many runs must Ananya score in the next innings to raise the average to 39?
  27. 27.The average of 9 numbers is 55. When one more number is added, the average becomes 59. What number was added?
  28. 28.A shop sells an average of 62 kg of sugar a day for 6 days, and then 41 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  29. 29.Aarav’s batting average after 6 innings is 39 runs. How many runs must Aarav score in the next innings to raise the average to 44?
  30. 30.Sneha’s batting average after 11 innings is 36 runs. How many runs must Sneha score in the next innings to raise the average to 39?
  31. 31.Marks of 4 friends in a quiz: 73, 65, 84, 94. What is their average mark?
  32. 32.A shop sells an average of 42 kg of sugar a day for 6 days, and then 57 kg a day for the next 4 days. What is the average sale per day for all 10 days (in kg)?
  33. 33.A shop sells an average of 58 kg of sugar a day for 6 days, and then 73 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  34. 34.A shop sells an average of 43 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)?
  35. 35.A shop sells an average of 42 kg of sugar a day for 3 days, and then 21 kg a day for the next 4 days. What is the average sale per day for all 7 days (in kg)?
  36. 36.A shop sells an average of 64 kg of sugar a day for 6 days, and then 56 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  37. 37.A shop sells an average of 37 kg of sugar a day for 2 days, and then 47 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  38. 38.The average of 8 numbers is 55. When one more number is added, the average becomes 56. What number was added?
  39. 39.Marks of 5 friends in a quiz: 18, 38, 29, 36, 14. What is their average mark?
  40. 40.A shop sells an average of 62 kg of sugar a day for 6 days, and then 29 kg a day for the next 5 days. What is the average sale per day for all 11 days (in kg)?

Answer key

  1. 28
  2. 78
  3. 80
  4. 67
  5. 47
  6. 34
  7. 70
  8. 54
  9. 86
  10. 34
  11. 53
  12. 58
  13. 67
  14. 71
  15. 71
  16. 37
  17. 41
  18. 60
  19. 50
  20. 22
  21. 40
  22. 25
  23. 48
  24. 31
  25. 49
  26. 83
  27. 95
  28. 55
  29. 74
  30. 72
  31. 79
  32. 48
  33. 63
  34. 46
  35. 30
  36. 62
  37. 43
  38. 64
  39. 27
  40. 47

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