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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 713 · 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 47 kg of sugar a day for 6 days, and then 23 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  2. 2.The average weight of 10 children is 29 kg. One child, who weighs 56 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.The average of 6 numbers is 35. When one more number is added, the average becomes 36. What number was added?
  4. 4.The average of 4 numbers is 53. When one more number is added, the average becomes 59. What number was added?
  5. 5.The average weight of 7 children is 30 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.The average of 6 numbers is 42. When one more number is added, the average becomes 45. What number was added?
  7. 7.The average of 7 numbers is 38. When one more number is added, the average becomes 40. What number was added?
  8. 8.Marks of 5 friends in a quiz: 75, 52, 73, 53, 62. What is their average mark?
  9. 9.The average of 5 numbers is 31. When one more number is added, the average becomes 33. What number was added?
  10. 10.The average of 5 numbers is 57. When one more number is added, the average becomes 63. What number was added?
  11. 11.Arjun’s batting average after 7 innings is 27 runs. How many runs must Arjun score in the next innings to raise the average to 28?
  12. 12.The average of 9 numbers is 44. When one more number is added, the average becomes 45. What number was added?
  13. 13.Marks of 5 friends in a quiz: 81, 97, 83, 96, 58. What is their average mark?
  14. 14.The average weight of 7 children is 31 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  15. 15.The average of 5 numbers is 44. When one more number is added, the average becomes 45. What number was added?
  16. 16.The average weight of 7 children is 30 kg. One child, who weighs 42 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.The average of 6 numbers is 60. When one more number is added, the average becomes 62. What number was added?
  18. 18.The average of 9 numbers is 49. When one more number is added, the average becomes 53. What number was added?
  19. 19.Rohan’s batting average after 11 innings is 42 runs. How many runs must Rohan score in the next innings to raise the average to 46?
  20. 20.The average of 7 numbers is 22. When one more number is added, the average becomes 26. What number was added?
  21. 21.Marks of 4 friends in a quiz: 65, 61, 83, 67. What is their average mark?
  22. 22.A shop sells an average of 30 kg of sugar a day for 5 days, and then 20 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  23. 23.A shop sells an average of 61 kg of sugar a day for 5 days, and then 57 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  24. 24.Marks of 5 friends in a quiz: 58, 31, 40, 39, 47. What is their average mark?
  25. 25.Marks of 6 friends in a quiz: 59, 67, 61, 68, 66, 93. What is their average mark?
  26. 26.The average of 8 numbers is 26. When one more number is added, the average becomes 28. What number was added?
  27. 27.A shop sells an average of 20 kg of sugar a day for 4 days, and then 65 kg a day for the next 5 days. What is the average sale per day for all 9 days (in kg)?
  28. 28.The average weight of 10 children is 33 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
  29. 29.The average weight of 12 children is 43 kg. One child, who weighs 65 kg, leaves the group. What is the new average weight (in kg)?
  30. 30.The average of 9 numbers is 41. When one more number is added, the average becomes 46. What number was added?
  31. 31.Marks of 6 friends in a quiz: 39, 23, 45, 29, 30, 50. What is their average mark?
  32. 32.A shop sells an average of 22 kg of sugar a day for 2 days, and then 74 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  33. 33.The average of 7 numbers is 34. When one more number is added, the average becomes 38. What number was added?
  34. 34.Marks of 4 friends in a quiz: 15, 37, 43, 21. What is their average mark?
  35. 35.The average of 8 numbers is 36. When one more number is added, the average becomes 42. What number was added?
  36. 36.A shop sells an average of 70 kg of sugar a day for 3 days, and then 78 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  37. 37.Marks of 4 friends in a quiz: 86, 86, 80, 36. What is their average mark?
  38. 38.The average weight of 5 children is 46 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  39. 39.Rohan’s batting average after 10 innings is 28 runs. How many runs must Rohan score in the next innings to raise the average to 29?
  40. 40.A shop sells an average of 74 kg of sugar a day for 2 days, and then 40 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?

Answer key

  1. 35
  2. 26
  3. 42
  4. 83
  5. 29
  6. 63
  7. 54
  8. 63
  9. 43
  10. 93
  11. 35
  12. 54
  13. 83
  14. 29
  15. 50
  16. 28
  17. 74
  18. 89
  19. 90
  20. 54
  21. 69
  22. 25
  23. 59
  24. 43
  25. 69
  26. 44
  27. 45
  28. 30
  29. 41
  30. 91
  31. 36
  32. 48
  33. 66
  34. 29
  35. 90
  36. 74
  37. 72
  38. 43
  39. 39
  40. 57

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