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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 523 · 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 33. When one more number is added, the average becomes 35. What number was added?
  2. 2.The average of 6 numbers is 28. When one more number is added, the average becomes 29. What number was added?
  3. 3.Marks of 5 friends in a quiz: 32, 16, 32, 35, 40. What is their average mark?
  4. 4.The average of 7 numbers is 25. When one more number is added, the average becomes 27. What number was added?
  5. 5.Aditya’s batting average after 14 innings is 44 runs. How many runs must Aditya score in the next innings to raise the average to 46?
  6. 6.The average of 9 numbers is 36. When one more number is added, the average becomes 38. What number was added?
  7. 7.Marks of 5 friends in a quiz: 37, 34, 41, 54, 79. What is their average mark?
  8. 8.A shop sells an average of 74 kg of sugar a day for 2 days, and then 59 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  9. 9.A shop sells an average of 24 kg of sugar a day for 4 days, and then 66 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  10. 10.The average of 5 numbers is 47. When one more number is added, the average becomes 48. What number was added?
  11. 11.A shop sells an average of 49 kg of sugar a day for 2 days, and then 21 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  12. 12.A shop sells an average of 69 kg of sugar a day for 5 days, and then 37 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  13. 13.The average of 5 numbers is 41. When one more number is added, the average becomes 43. What number was added?
  14. 14.Marks of 5 friends in a quiz: 33, 23, 10, 30, 14. What is their average mark?
  15. 15.The average of 9 numbers is 33. When one more number is added, the average becomes 37. What number was added?
  16. 16.The average of 4 numbers is 21. When one more number is added, the average becomes 26. What number was added?
  17. 17.The average of 7 numbers is 33. When one more number is added, the average becomes 36. What number was added?
  18. 18.The average weight of 10 children is 28 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  19. 19.Aditya’s batting average after 12 innings is 28 runs. How many runs must Aditya score in the next innings to raise the average to 29?
  20. 20.Marks of 6 friends in a quiz: 60, 75, 50, 52, 60, 93. What is their average mark?
  21. 21.Kabir’s batting average after 5 innings is 32 runs. How many runs must Kabir score in the next innings to raise the average to 37?
  22. 22.Marks of 6 friends in a quiz: 56, 61, 61, 59, 54, 69. What is their average mark?
  23. 23.Dev’s batting average after 5 innings is 37 runs. How many runs must Dev score in the next innings to raise the average to 39?
  24. 24.Priya’s batting average after 10 innings is 33 runs. How many runs must Priya score in the next innings to raise the average to 38?
  25. 25.The average weight of 6 children is 36 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.The average weight of 10 children is 37 kg. One child, who weighs 64 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.The average of 9 numbers is 17. When one more number is added, the average becomes 21. What number was added?
  28. 28.The average of 8 numbers is 20. When one more number is added, the average becomes 22. What number was added?
  29. 29.Kavya’s batting average after 9 innings is 38 runs. How many runs must Kavya score in the next innings to raise the average to 43?
  30. 30.A shop sells an average of 29 kg of sugar a day for 2 days, and then 64 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  31. 31.The average of 9 numbers is 47. When one more number is added, the average becomes 49. What number was added?
  32. 32.The average weight of 12 children is 45 kg. One child, who weighs 78 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.The average weight of 11 children is 37 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.Marks of 5 friends in a quiz: 26, 53, 36, 30, 50. What is their average mark?
  35. 35.The average weight of 11 children is 29 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  36. 36.Marks of 5 friends in a quiz: 53, 43, 41, 51, 17. What is their average mark?
  37. 37.Marks of 5 friends in a quiz: 72, 48, 66, 75, 54. What is their average mark?
  38. 38.A shop sells an average of 35 kg of sugar a day for 6 days, and then 27 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  39. 39.Meera’s batting average after 5 innings is 45 runs. How many runs must Meera score in the next innings to raise the average to 46?
  40. 40.The average of 4 numbers is 16. When one more number is added, the average becomes 18. What number was added?

Answer key

  1. 43
  2. 35
  3. 31
  4. 41
  5. 74
  6. 56
  7. 49
  8. 64
  9. 45
  10. 53
  11. 29
  12. 53
  13. 53
  14. 22
  15. 73
  16. 46
  17. 57
  18. 26
  19. 41
  20. 65
  21. 62
  22. 60
  23. 49
  24. 88
  25. 34
  26. 34
  27. 57
  28. 38
  29. 88
  30. 54
  31. 67
  32. 42
  33. 36
  34. 39
  35. 27
  36. 41
  37. 63
  38. 33
  39. 51
  40. 26

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