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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 556 · 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.A shop sells an average of 26 kg of sugar a day for 6 days, and then 35 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  2. 2.A shop sells an average of 59 kg of sugar a day for 3 days, and then 67 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
  3. 3.The average of 7 numbers is 37. When one more number is added, the average becomes 42. What number was added?
  4. 4.Marks of 6 friends in a quiz: 55, 50, 62, 51, 52, 78. What is their average mark?
  5. 5.The average of 4 numbers is 33. When one more number is added, the average becomes 37. What number was added?
  6. 6.Marks of 5 friends in a quiz: 77, 59, 64, 83, 67. What is their average mark?
  7. 7.The average of 9 numbers is 47. When one more number is added, the average becomes 53. What number was added?
  8. 8.Marks of 4 friends in a quiz: 86, 74, 81, 83. What is their average mark?
  9. 9.The average of 4 numbers is 53. When one more number is added, the average becomes 57. What number was added?
  10. 10.Ishaan’s batting average after 11 innings is 27 runs. How many runs must Ishaan score in the next innings to raise the average to 28?
  11. 11.Arjun’s batting average after 14 innings is 22 runs. How many runs must Arjun score in the next innings to raise the average to 24?
  12. 12.The average weight of 12 children is 39 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.A shop sells an average of 72 kg of sugar a day for 6 days, and then 36 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  14. 14.A shop sells an average of 35 kg of sugar a day for 4 days, and then 49 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  15. 15.The average weight of 9 children is 47 kg. One child, who weighs 63 kg, leaves the group. What is the new average weight (in kg)?
  16. 16.The average weight of 12 children is 34 kg. One child, who weighs 67 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.Priya’s batting average after 5 innings is 21 runs. How many runs must Priya score in the next innings to raise the average to 23?
  18. 18.Marks of 6 friends in a quiz: 57, 38, 33, 49, 39, 72. What is their average mark?
  19. 19.Karan’s batting average after 6 innings is 26 runs. How many runs must Karan score in the next innings to raise the average to 30?
  20. 20.Manav’s batting average after 8 innings is 41 runs. How many runs must Manav score in the next innings to raise the average to 43?
  21. 21.The average of 6 numbers is 29. When one more number is added, the average becomes 30. What number was added?
  22. 22.The average weight of 9 children is 36 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.The average of 5 numbers is 27. When one more number is added, the average becomes 31. What number was added?
  24. 24.The average of 8 numbers is 35. When one more number is added, the average becomes 37. What number was added?
  25. 25.The average of 4 numbers is 57. When one more number is added, the average becomes 61. What number was added?
  26. 26.Kavya’s batting average after 12 innings is 27 runs. How many runs must Kavya score in the next innings to raise the average to 31?
  27. 27.Marks of 6 friends in a quiz: 45, 20, 32, 28, 22, 33. What is their average mark?
  28. 28.A shop sells an average of 34 kg of sugar a day for 6 days, and then 40 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  29. 29.The average weight of 5 children is 35 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  30. 30.A shop sells an average of 25 kg of sugar a day for 3 days, and then 40 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  31. 31.Aarav’s batting average after 8 innings is 20 runs. How many runs must Aarav score in the next innings to raise the average to 25?
  32. 32.Marks of 4 friends in a quiz: 51, 63, 52, 74. What is their average mark?
  33. 33.A shop sells an average of 22 kg of sugar a day for 3 days, and then 50 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  34. 34.Marks of 5 friends in a quiz: 25, 48, 39, 48, 35. What is their average mark?
  35. 35.The average weight of 12 children is 38 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
  36. 36.Marks of 4 friends in a quiz: 64, 79, 72, 49. What is their average mark?
  37. 37.The average of 5 numbers is 47. When one more number is added, the average becomes 49. What number was added?
  38. 38.The average weight of 5 children is 32 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
  39. 39.The average of 9 numbers is 21. When one more number is added, the average becomes 22. What number was added?
  40. 40.Marks of 6 friends in a quiz: 41, 30, 55, 32, 51, 49. What is their average mark?

Answer key

  1. 29
  2. 64
  3. 77
  4. 58
  5. 53
  6. 70
  7. 107
  8. 81
  9. 73
  10. 39
  11. 52
  12. 37
  13. 60
  14. 42
  15. 45
  16. 31
  17. 33
  18. 48
  19. 54
  20. 59
  21. 36
  22. 35
  23. 51
  24. 53
  25. 77
  26. 79
  27. 30
  28. 37
  29. 33
  30. 31
  31. 65
  32. 60
  33. 36
  34. 39
  35. 36
  36. 66
  37. 59
  38. 31
  39. 31
  40. 43

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