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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 267 · 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 weight of 8 children is 31 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  2. 2.Arjun’s batting average after 5 innings is 32 runs. How many runs must Arjun score in the next innings to raise the average to 36?
  3. 3.The average of 5 numbers is 56. When one more number is added, the average becomes 61. What number was added?
  4. 4.The average weight of 5 children is 40 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
  5. 5.Marks of 5 friends in a quiz: 43, 47, 28, 32, 55. What is their average mark?
  6. 6.A shop sells an average of 23 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)?
  7. 7.A shop sells an average of 40 kg of sugar a day for 2 days, and then 56 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  8. 8.The average of 8 numbers is 15. When one more number is added, the average becomes 19. What number was added?
  9. 9.Marks of 6 friends in a quiz: 51, 47, 45, 47, 39, 65. What is their average mark?
  10. 10.The average of 6 numbers is 23. When one more number is added, the average becomes 26. What number was added?
  11. 11.A shop sells an average of 79 kg of sugar a day for 2 days, and then 43 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  12. 12.Marks of 4 friends in a quiz: 28, 48, 32, 32. What is their average mark?
  13. 13.The average weight of 11 children is 28 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  14. 14.Marks of 4 friends in a quiz: 66, 56, 54, 80. What is their average mark?
  15. 15.A shop sells an average of 36 kg of sugar a day for 3 days, and then 68 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
  16. 16.The average of 9 numbers is 30. When one more number is added, the average becomes 31. What number was added?
  17. 17.The average weight of 7 children is 33 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  18. 18.Kabir’s batting average after 15 innings is 20 runs. How many runs must Kabir score in the next innings to raise the average to 23?
  19. 19.Marks of 6 friends in a quiz: 21, 15, 42, 19, 36, 29. What is their average mark?
  20. 20.Marks of 4 friends in a quiz: 90, 67, 78, 81. What is their average mark?
  21. 21.Ishaan’s batting average after 5 innings is 46 runs. How many runs must Ishaan score in the next innings to raise the average to 47?
  22. 22.The average of 5 numbers is 57. When one more number is added, the average becomes 59. What number was added?
  23. 23.Marks of 6 friends in a quiz: 24, 26, 30, 24, 20, 80. What is their average mark?
  24. 24.A shop sells an average of 78 kg of sugar a day for 3 days, and then 50 kg a day for the next 4 days. What is the average sale per day for all 7 days (in kg)?
  25. 25.Marks of 6 friends in a quiz: 48, 58, 41, 46, 62, 57. What is their average mark?
  26. 26.The average of 5 numbers is 46. When one more number is added, the average becomes 47. What number was added?
  27. 27.The average of 5 numbers is 38. When one more number is added, the average becomes 39. What number was added?
  28. 28.Marks of 5 friends in a quiz: 24, 25, 46, 29, 56. What is their average mark?
  29. 29.Marks of 6 friends in a quiz: 44, 24, 26, 27, 27, 62. What is their average mark?
  30. 30.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)?
  31. 31.The average weight of 5 children is 31 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
  32. 32.Marks of 6 friends in a quiz: 34, 37, 43, 45, 46, 71. What is their average mark?
  33. 33.The average weight of 12 children is 37 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.Marks of 6 friends in a quiz: 50, 58, 44, 30, 33, 43. What is their average mark?
  35. 35.The average of 8 numbers is 21. When one more number is added, the average becomes 26. What number was added?
  36. 36.Kabir’s batting average after 14 innings is 31 runs. How many runs must Kabir score in the next innings to raise the average to 32?
  37. 37.Marks of 4 friends in a quiz: 95, 76, 88, 77. What is their average mark?
  38. 38.Pooja’s batting average after 15 innings is 46 runs. How many runs must Pooja score in the next innings to raise the average to 49?
  39. 39.The average of 4 numbers is 24. When one more number is added, the average becomes 29. What number was added?
  40. 40.Aarav’s batting average after 12 innings is 49 runs. How many runs must Aarav score in the next innings to raise the average to 50?

Answer key

  1. 28
  2. 56
  3. 86
  4. 39
  5. 41
  6. 38
  7. 52
  8. 51
  9. 49
  10. 44
  11. 52
  12. 35
  13. 25
  14. 64
  15. 56
  16. 40
  17. 30
  18. 68
  19. 27
  20. 79
  21. 52
  22. 69
  23. 34
  24. 62
  25. 52
  26. 52
  27. 44
  28. 36
  29. 35
  30. 37
  31. 30
  32. 46
  33. 35
  34. 43
  35. 66
  36. 46
  37. 84
  38. 94
  39. 49
  40. 62

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