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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 688 · 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 4 numbers is 58. When one more number is added, the average becomes 64. What number was added?
  2. 2.The average of 9 numbers is 18. When one more number is added, the average becomes 21. What number was added?
  3. 3.Marks of 6 friends in a quiz: 80, 82, 79, 69, 56, 54. What is their average mark?
  4. 4.Marks of 6 friends in a quiz: 10, 11, 35, 33, 11, 50. What is their average mark?
  5. 5.The average weight of 5 children is 36 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.Marks of 5 friends in a quiz: 87, 89, 82, 64, 58. What is their average mark?
  7. 7.Marks of 6 friends in a quiz: 18, 28, 20, 31, 7, 28. What is their average mark?
  8. 8.The average of 9 numbers is 31. When one more number is added, the average becomes 34. What number was added?
  9. 9.Marks of 4 friends in a quiz: 76, 56, 69, 47. What is their average mark?
  10. 10.A shop sells an average of 79 kg of sugar a day for 2 days, and then 67 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  11. 11.Rohan’s batting average after 13 innings is 27 runs. How many runs must Rohan score in the next innings to raise the average to 31?
  12. 12.The average weight of 6 children is 44 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.A shop sells an average of 79 kg of sugar a day for 3 days, and then 29 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  14. 14.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)?
  15. 15.Marks of 5 friends in a quiz: 58, 55, 59, 71, 82. What is their average mark?
  16. 16.The average of 9 numbers is 19. When one more number is added, the average becomes 22. What number was added?
  17. 17.A shop sells an average of 70 kg of sugar a day for 2 days, and then 58 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 24. When one more number is added, the average becomes 30. What number was added?
  19. 19.The average weight of 8 children is 26 kg. One child, who weighs 33 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.Rohan’s batting average after 13 innings is 25 runs. How many runs must Rohan score in the next innings to raise the average to 28?
  21. 21.A shop sells an average of 80 kg of sugar a day for 6 days, and then 28 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  22. 22.The average weight of 8 children is 37 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.Sneha’s batting average after 5 innings is 42 runs. How many runs must Sneha score in the next innings to raise the average to 45?
  24. 24.Marks of 6 friends in a quiz: 52, 54, 45, 60, 64, 85. What is their average mark?
  25. 25.A shop sells an average of 68 kg of sugar a day for 2 days, and then 53 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  26. 26.A shop sells an average of 65 kg of sugar a day for 3 days, and then 55 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  27. 27.Sneha’s batting average after 7 innings is 39 runs. How many runs must Sneha score in the next innings to raise the average to 40?
  28. 28.Marks of 6 friends in a quiz: 49, 57, 55, 63, 49, 21. What is their average mark?
  29. 29.The average of 7 numbers is 16. When one more number is added, the average becomes 22. What number was added?
  30. 30.A shop sells an average of 34 kg of sugar a day for 6 days, and then 32 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  31. 31.The average of 8 numbers is 52. When one more number is added, the average becomes 55. What number was added?
  32. 32.Zoya’s batting average after 14 innings is 40 runs. How many runs must Zoya score in the next innings to raise the average to 42?
  33. 33.A shop sells an average of 50 kg of sugar a day for 2 days, and then 25 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  34. 34.Marks of 4 friends in a quiz: 37, 36, 44, 75. What is their average mark?
  35. 35.Marks of 5 friends in a quiz: 30, 19, 14, 33, 14. What is their average mark?
  36. 36.Marks of 5 friends in a quiz: 21, 40, 17, 12, 35. What is their average mark?
  37. 37.Marks of 6 friends in a quiz: 22, 30, 37, 44, 45, 26. What is their average mark?
  38. 38.A shop sells an average of 61 kg of sugar a day for 4 days, and then 55 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  39. 39.The average weight of 12 children is 38 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.Marks of 5 friends in a quiz: 36, 46, 34, 37, 17. What is their average mark?

Answer key

  1. 88
  2. 48
  3. 70
  4. 25
  5. 34
  6. 76
  7. 22
  8. 61
  9. 62
  10. 70
  11. 83
  12. 41
  13. 59
  14. 37
  15. 65
  16. 49
  17. 62
  18. 84
  19. 25
  20. 67
  21. 67
  22. 34
  23. 60
  24. 60
  25. 58
  26. 60
  27. 47
  28. 49
  29. 64
  30. 33
  31. 79
  32. 70
  33. 35
  34. 48
  35. 22
  36. 25
  37. 34
  38. 58
  39. 37
  40. 34

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