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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 499 · 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.

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  1. 1.Marks of 5 friends in a quiz: 50, 42, 67, 48, 53. What is their average mark?
  2. 2.The average weight of 6 children is 40 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.The average of 5 numbers is 24. When one more number is added, the average becomes 27. What number was added?
  4. 4.Meera’s batting average after 13 innings is 45 runs. How many runs must Meera score in the next innings to raise the average to 48?
  5. 5.The average weight of 9 children is 34 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.The average weight of 8 children is 47 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?
  7. 7.A shop sells an average of 34 kg of sugar a day for 5 days, and then 30 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  8. 8.Karan’s batting average after 7 innings is 30 runs. How many runs must Karan score in the next innings to raise the average to 34?
  9. 9.Diya’s batting average after 11 innings is 50 runs. How many runs must Diya score in the next innings to raise the average to 51?
  10. 10.Farhan’s batting average after 7 innings is 43 runs. How many runs must Farhan score in the next innings to raise the average to 46?
  11. 11.Ananya’s batting average after 6 innings is 34 runs. How many runs must Ananya score in the next innings to raise the average to 38?
  12. 12.Isha’s batting average after 13 innings is 38 runs. How many runs must Isha score in the next innings to raise the average to 39?
  13. 13.A shop sells an average of 50 kg of sugar a day for 6 days, and then 45 kg a day for the next 4 days. What is the average sale per day for all 10 days (in kg)?
  14. 14.The average of 5 numbers is 22. When one more number is added, the average becomes 28. What number was added?
  15. 15.Marks of 4 friends in a quiz: 54, 57, 51, 74. What is their average mark?
  16. 16.The average of 7 numbers is 42. When one more number is added, the average becomes 45. What number was added?
  17. 17.The average weight of 12 children is 31 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  18. 18.Marks of 5 friends in a quiz: 60, 61, 31, 36, 42. What is their average mark?
  19. 19.The average weight of 10 children is 37 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.The average weight of 6 children is 35 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  21. 21.The average weight of 12 children is 32 kg. One child, who weighs 65 kg, leaves the group. What is the new average weight (in kg)?
  22. 22.The average weight of 9 children is 31 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.The average of 8 numbers is 30. When one more number is added, the average becomes 36. What number was added?
  24. 24.Marks of 6 friends in a quiz: 92, 72, 84, 65, 76, 91. What is their average mark?
  25. 25.Marks of 4 friends in a quiz: 41, 50, 43, 78. What is their average mark?
  26. 26.The average of 4 numbers is 35. When one more number is added, the average becomes 39. What number was added?
  27. 27.A shop sells an average of 46 kg of sugar a day for 5 days, and then 60 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  28. 28.The average of 7 numbers is 29. When one more number is added, the average becomes 30. What number was added?
  29. 29.The average of 4 numbers is 22. When one more number is added, the average becomes 27. What number was added?
  30. 30.Marks of 4 friends in a quiz: 27, 49, 36, 52. What is their average mark?
  31. 31.A shop sells an average of 24 kg of sugar a day for 2 days, and then 68 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  32. 32.The average weight of 6 children is 32 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.Marks of 5 friends in a quiz: 21, 27, 17, 15, 20. What is their average mark?
  34. 34.Pooja’s batting average after 8 innings is 33 runs. How many runs must Pooja score in the next innings to raise the average to 34?
  35. 35.The average of 8 numbers is 36. When one more number is added, the average becomes 39. What number was added?
  36. 36.The average of 6 numbers is 16. When one more number is added, the average becomes 22. What number was added?
  37. 37.The average of 8 numbers is 32. When one more number is added, the average becomes 38. What number was added?
  38. 38.A shop sells an average of 62 kg of sugar a day for 4 days, and then 68 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  39. 39.The average of 8 numbers is 24. When one more number is added, the average becomes 29. What number was added?
  40. 40.A shop sells an average of 59 kg of sugar a day for 6 days, and then 67 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?

Answer key

  1. 52
  2. 38
  3. 42
  4. 87
  5. 31
  6. 45
  7. 32
  8. 62
  9. 62
  10. 67
  11. 62
  12. 52
  13. 48
  14. 58
  15. 59
  16. 66
  17. 29
  18. 46
  19. 36
  20. 34
  21. 29
  22. 30
  23. 84
  24. 80
  25. 53
  26. 55
  27. 53
  28. 37
  29. 47
  30. 41
  31. 46
  32. 31
  33. 20
  34. 42
  35. 63
  36. 58
  37. 86
  38. 64
  39. 69
  40. 63

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