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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 448 · 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 10 children is 46 kg. One child, who weighs 73 kg, leaves the group. What is the new average weight (in kg)?
  2. 2.The average of 5 numbers is 24. When one more number is added, the average becomes 29. What number was added?
  3. 3.The average of 4 numbers is 15. When one more number is added, the average becomes 18. What number was added?
  4. 4.The average of 6 numbers is 26. When one more number is added, the average becomes 32. What number was added?
  5. 5.A shop sells an average of 36 kg of sugar a day for 2 days, and then 38 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  6. 6.The average of 4 numbers is 25. When one more number is added, the average becomes 27. What number was added?
  7. 7.The average weight of 11 children is 41 kg. One child, who weighs 71 kg, leaves the group. What is the new average weight (in kg)?
  8. 8.Marks of 6 friends in a quiz: 47, 48, 24, 45, 35, 23. What is their average mark?
  9. 9.A shop sells an average of 50 kg of sugar a day for 4 days, and then 23 kg a day for the next 5 days. What is the average sale per day for all 9 days (in kg)?
  10. 10.Marks of 5 friends in a quiz: 57, 62, 38, 46, 57. What is their average mark?
  11. 11.Marks of 4 friends in a quiz: 87, 71, 89, 61. What is their average mark?
  12. 12.The average weight of 11 children is 48 kg. One child, who weighs 78 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.The average of 7 numbers is 32. When one more number is added, the average becomes 36. What number was added?
  14. 14.Marks of 6 friends in a quiz: 32, 11, 40, 30, 31, 12. What is their average mark?
  15. 15.A shop sells an average of 32 kg of sugar a day for 3 days, and then 56 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  16. 16.The average weight of 7 children is 31 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.The average of 8 numbers is 50. When one more number is added, the average becomes 51. What number was added?
  18. 18.Tara’s batting average after 11 innings is 44 runs. How many runs must Tara score in the next innings to raise the average to 45?
  19. 19.The average weight of 10 children is 43 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.Arjun’s batting average after 10 innings is 27 runs. How many runs must Arjun score in the next innings to raise the average to 30?
  21. 21.Kavya’s batting average after 9 innings is 36 runs. How many runs must Kavya score in the next innings to raise the average to 37?
  22. 22.A shop sells an average of 28 kg of sugar a day for 2 days, and then 32 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  23. 23.Marks of 6 friends in a quiz: 21, 19, 17, 18, 18, 69. What is their average mark?
  24. 24.The average of 6 numbers is 30. When one more number is added, the average becomes 32. What number was added?
  25. 25.Marks of 6 friends in a quiz: 72, 96, 78, 86, 100, 90. What is their average mark?
  26. 26.Marks of 4 friends in a quiz: 63, 82, 57, 78. What is their average mark?
  27. 27.The average weight of 5 children is 42 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.The average weight of 5 children is 35 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  29. 29.Marks of 6 friends in a quiz: 47, 22, 49, 20, 21, 45. What is their average mark?
  30. 30.Saanvi’s batting average after 6 innings is 42 runs. How many runs must Saanvi score in the next innings to raise the average to 43?
  31. 31.Aarav’s batting average after 8 innings is 23 runs. How many runs must Aarav score in the next innings to raise the average to 24?
  32. 32.Ananya’s batting average after 13 innings is 26 runs. How many runs must Ananya score in the next innings to raise the average to 31?
  33. 33.A shop sells an average of 55 kg of sugar a day for 4 days, and then 41 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  34. 34.The average weight of 7 children is 42 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.Marks of 4 friends in a quiz: 43, 51, 50, 40. What is their average mark?
  36. 36.Marks of 6 friends in a quiz: 23, 21, 26, 28, 44, 38. What is their average mark?
  37. 37.A shop sells an average of 41 kg of sugar a day for 3 days, and then 69 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  38. 38.The average weight of 12 children is 28 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  39. 39.Marks of 5 friends in a quiz: 41, 26, 20, 30, 38. What is their average mark?
  40. 40.A shop sells an average of 72 kg of sugar a day for 2 days, and then 48 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?

Answer key

  1. 43
  2. 54
  3. 30
  4. 68
  5. 37
  6. 35
  7. 38
  8. 37
  9. 35
  10. 52
  11. 77
  12. 45
  13. 64
  14. 26
  15. 44
  16. 30
  17. 59
  18. 56
  19. 41
  20. 60
  21. 46
  22. 31
  23. 27
  24. 44
  25. 87
  26. 70
  27. 40
  28. 32
  29. 34
  30. 49
  31. 32
  32. 96
  33. 48
  34. 39
  35. 46
  36. 30
  37. 55
  38. 26
  39. 31
  40. 56

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