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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 222 · 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 27. When one more number is added, the average becomes 32. What number was added?
  2. 2.The average weight of 11 children is 30 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.Meera’s batting average after 6 innings is 36 runs. How many runs must Meera score in the next innings to raise the average to 37?
  4. 4.Ananya’s batting average after 13 innings is 24 runs. How many runs must Ananya score in the next innings to raise the average to 29?
  5. 5.The average weight of 12 children is 27 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.The average of 7 numbers is 22. When one more number is added, the average becomes 23. What number was added?
  7. 7.Isha’s batting average after 8 innings is 36 runs. How many runs must Isha score in the next innings to raise the average to 38?
  8. 8.Nisha’s batting average after 15 innings is 32 runs. How many runs must Nisha score in the next innings to raise the average to 37?
  9. 9.Marks of 5 friends in a quiz: 56, 45, 58, 52, 14. What is their average mark?
  10. 10.The average weight of 6 children is 43 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  11. 11.A shop sells an average of 40 kg of sugar a day for 5 days, and then 44 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  12. 12.The average of 4 numbers is 32. When one more number is added, the average becomes 38. What number was added?
  13. 13.Manav’s batting average after 6 innings is 24 runs. How many runs must Manav score in the next innings to raise the average to 29?
  14. 14.Marks of 4 friends in a quiz: 57, 81, 77, 53. What is their average mark?
  15. 15.Meera’s batting average after 7 innings is 47 runs. How many runs must Meera score in the next innings to raise the average to 51?
  16. 16.Aditya’s batting average after 12 innings is 23 runs. How many runs must Aditya score in the next innings to raise the average to 27?
  17. 17.Marks of 4 friends in a quiz: 13, 32, 16, 23. What is their average mark?
  18. 18.Marks of 6 friends in a quiz: 30, 43, 26, 32, 17, 44. What is their average mark?
  19. 19.The average of 8 numbers is 52. When one more number is added, the average becomes 53. What number was added?
  20. 20.The average weight of 5 children is 31 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  21. 21.Marks of 4 friends in a quiz: 22, 29, 6, 27. What is their average mark?
  22. 22.Marks of 6 friends in a quiz: 26, 25, 47, 42, 46, 12. What is their average mark?
  23. 23.Marks of 5 friends in a quiz: 71, 83, 82, 95, 69. What is their average mark?
  24. 24.The average of 7 numbers is 28. When one more number is added, the average becomes 29. What number was added?
  25. 25.Marks of 4 friends in a quiz: 39, 41, 44, 44. What is their average mark?
  26. 26.Marks of 5 friends in a quiz: 64, 40, 34, 41, 66. What is their average mark?
  27. 27.Rahul’s batting average after 8 innings is 50 runs. How many runs must Rahul score in the next innings to raise the average to 54?
  28. 28.The average of 9 numbers is 18. When one more number is added, the average becomes 20. What number was added?
  29. 29.The average weight of 7 children is 29 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
  30. 30.Marks of 4 friends in a quiz: 31, 16, 22, 47. What is their average mark?
  31. 31.Marks of 6 friends in a quiz: 38, 33, 24, 27, 29, 5. What is their average mark?
  32. 32.The average weight of 10 children is 35 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.The average of 8 numbers is 22. When one more number is added, the average becomes 23. What number was added?
  34. 34.The average weight of 5 children is 44 kg. One child, who weighs 56 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.Marks of 6 friends in a quiz: 59, 62, 58, 84, 61, 96. What is their average mark?
  36. 36.Marks of 4 friends in a quiz: 68, 59, 63, 98. What is their average mark?
  37. 37.Dev’s batting average after 15 innings is 38 runs. How many runs must Dev score in the next innings to raise the average to 42?
  38. 38.A shop sells an average of 78 kg of sugar a day for 2 days, and then 52 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  39. 39.A shop sells an average of 24 kg of sugar a day for 6 days, and then 64 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  40. 40.The average of 7 numbers is 16. When one more number is added, the average becomes 19. What number was added?

Answer key

  1. 67
  2. 28
  3. 43
  4. 94
  5. 26
  6. 30
  7. 54
  8. 112
  9. 45
  10. 42
  11. 42
  12. 62
  13. 59
  14. 67
  15. 79
  16. 75
  17. 21
  18. 32
  19. 61
  20. 29
  21. 21
  22. 33
  23. 80
  24. 36
  25. 42
  26. 49
  27. 86
  28. 38
  29. 27
  30. 29
  31. 26
  32. 34
  33. 31
  34. 41
  35. 70
  36. 72
  37. 102
  38. 65
  39. 34
  40. 40

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