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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 370 · 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 7 numbers is 19. When one more number is added, the average becomes 21. What number was added?
  2. 2.A shop sells an average of 22 kg of sugar a day for 4 days, and then 37 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  3. 3.The average weight of 6 children is 31 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
  4. 4.A shop sells an average of 22 kg of sugar a day for 3 days, and then 47 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  5. 5.Marks of 4 friends in a quiz: 78, 50, 75, 49. What is their average mark?
  6. 6.Ananya’s batting average after 14 innings is 46 runs. How many runs must Ananya score in the next innings to raise the average to 48?
  7. 7.Marks of 4 friends in a quiz: 9, 9, 29, 33. What is their average mark?
  8. 8.Farhan’s batting average after 10 innings is 46 runs. How many runs must Farhan score in the next innings to raise the average to 50?
  9. 9.Marks of 4 friends in a quiz: 94, 102, 104, 60. What is their average mark?
  10. 10.The average of 8 numbers is 17. When one more number is added, the average becomes 23. What number was added?
  11. 11.The average weight of 12 children is 46 kg. One child, who weighs 68 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.A shop sells an average of 46 kg of sugar a day for 4 days, and then 20 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  13. 13.The average of 7 numbers is 18. When one more number is added, the average becomes 21. What number was added?
  14. 14.Pooja’s batting average after 11 innings is 30 runs. How many runs must Pooja score in the next innings to raise the average to 33?
  15. 15.Sneha’s batting average after 10 innings is 48 runs. How many runs must Sneha score in the next innings to raise the average to 51?
  16. 16.The average weight of 5 children is 39 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.Marks of 4 friends in a quiz: 46, 30, 40, 56. What is their average mark?
  18. 18.Marks of 6 friends in a quiz: 64, 49, 51, 50, 44, 90. What is their average mark?
  19. 19.Marks of 4 friends in a quiz: 10, 21, 9, 44. What is their average mark?
  20. 20.Marks of 6 friends in a quiz: 43, 36, 53, 27, 30, 51. What is their average mark?
  21. 21.The average of 6 numbers is 18. When one more number is added, the average becomes 24. What number was added?
  22. 22.A shop sells an average of 50 kg of sugar a day for 4 days, and then 65 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  23. 23.Rahul’s batting average after 14 innings is 31 runs. How many runs must Rahul score in the next innings to raise the average to 33?
  24. 24.Marks of 6 friends in a quiz: 12, 34, 26, 19, 21, 8. What is their average mark?
  25. 25.Kavya’s batting average after 7 innings is 24 runs. How many runs must Kavya score in the next innings to raise the average to 25?
  26. 26.The average of 5 numbers is 48. When one more number is added, the average becomes 49. What number was added?
  27. 27.A shop sells an average of 65 kg of sugar a day for 2 days, and then 30 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  28. 28.Marks of 5 friends in a quiz: 26, 38, 18, 24, 39. What is their average mark?
  29. 29.The average weight of 6 children is 37 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  30. 30.Ishaan’s batting average after 8 innings is 36 runs. How many runs must Ishaan score in the next innings to raise the average to 40?
  31. 31.Ishaan’s batting average after 14 innings is 47 runs. How many runs must Ishaan score in the next innings to raise the average to 52?
  32. 32.Marks of 6 friends in a quiz: 68, 68, 57, 64, 52, 81. What is their average mark?
  33. 33.A shop sells an average of 63 kg of sugar a day for 6 days, and then 79 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  34. 34.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)?
  35. 35.The average of 4 numbers is 35. When one more number is added, the average becomes 37. What number was added?
  36. 36.Marks of 4 friends in a quiz: 63, 41, 52, 48. What is their average mark?
  37. 37.Marks of 5 friends in a quiz: 26, 23, 33, 16, 47. What is their average mark?
  38. 38.The average of 5 numbers is 20. When one more number is added, the average becomes 23. What number was added?
  39. 39.The average weight of 11 children is 36 kg. One child, who weighs 56 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.The average of 8 numbers is 42. When one more number is added, the average becomes 46. What number was added?

Answer key

  1. 35
  2. 27
  3. 29
  4. 32
  5. 63
  6. 76
  7. 20
  8. 90
  9. 90
  10. 71
  11. 44
  12. 33
  13. 42
  14. 66
  15. 81
  16. 36
  17. 43
  18. 58
  19. 21
  20. 40
  21. 60
  22. 55
  23. 61
  24. 20
  25. 32
  26. 54
  27. 40
  28. 29
  29. 35
  30. 72
  31. 122
  32. 65
  33. 67
  34. 29
  35. 45
  36. 51
  37. 29
  38. 38
  39. 34
  40. 78

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