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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 174 · 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 9 numbers is 19. When one more number is added, the average becomes 21. What number was added?
  2. 2.The average weight of 12 children is 34 kg. One child, who weighs 67 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.Marks of 5 friends in a quiz: 43, 37, 17, 19, 29. What is their average mark?
  4. 4.Arjun’s batting average after 13 innings is 36 runs. How many runs must Arjun score in the next innings to raise the average to 39?
  5. 5.The average of 9 numbers is 39. When one more number is added, the average becomes 42. What number was added?
  6. 6.The average of 8 numbers is 29. When one more number is added, the average becomes 30. What number was added?
  7. 7.Marks of 4 friends in a quiz: 39, 22, 42, 13. What is their average mark?
  8. 8.Tara’s batting average after 10 innings is 43 runs. How many runs must Tara score in the next innings to raise the average to 44?
  9. 9.A shop sells an average of 74 kg of sugar a day for 6 days, and then 77 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  10. 10.Marks of 6 friends in a quiz: 28, 14, 24, 17, 25, 48. What is their average mark?
  11. 11.The average weight of 8 children is 47 kg. One child, who weighs 68 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.Marks of 5 friends in a quiz: 81, 94, 82, 85, 88. What is their average mark?
  13. 13.The average of 7 numbers is 45. When one more number is added, the average becomes 48. What number was added?
  14. 14.Rahul’s batting average after 6 innings is 50 runs. How many runs must Rahul score in the next innings to raise the average to 51?
  15. 15.Ishaan’s batting average after 6 innings is 47 runs. How many runs must Ishaan score in the next innings to raise the average to 50?
  16. 16.The average of 6 numbers is 20. When one more number is added, the average becomes 21. What number was added?
  17. 17.Marks of 5 friends in a quiz: 27, 17, 14, 38, 34. What is their average mark?
  18. 18.Marks of 4 friends in a quiz: 97, 81, 85, 97. What is their average mark?
  19. 19.The average weight of 9 children is 30 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.A shop sells an average of 24 kg of sugar a day for 3 days, and then 69 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  21. 21.A shop sells an average of 31 kg of sugar a day for 3 days, and then 76 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  22. 22.Manav’s batting average after 8 innings is 22 runs. How many runs must Manav score in the next innings to raise the average to 25?
  23. 23.The average of 4 numbers is 19. When one more number is added, the average becomes 22. What number was added?
  24. 24.Dev’s batting average after 10 innings is 21 runs. How many runs must Dev score in the next innings to raise the average to 23?
  25. 25.The average weight of 10 children is 28 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.The average of 7 numbers is 53. When one more number is added, the average becomes 55. What number was added?
  27. 27.A shop sells an average of 54 kg of sugar a day for 4 days, and then 70 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  28. 28.A shop sells an average of 46 kg of sugar a day for 5 days, and then 24 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  29. 29.Rahul’s batting average after 11 innings is 48 runs. How many runs must Rahul score in the next innings to raise the average to 49?
  30. 30.Ananya’s batting average after 10 innings is 43 runs. How many runs must Ananya score in the next innings to raise the average to 45?
  31. 31.The average of 9 numbers is 31. When one more number is added, the average becomes 32. What number was added?
  32. 32.Nisha’s batting average after 6 innings is 37 runs. How many runs must Nisha score in the next innings to raise the average to 42?
  33. 33.Marks of 5 friends in a quiz: 40, 43, 21, 30, 6. What is their average mark?
  34. 34.Marks of 5 friends in a quiz: 32, 50, 23, 33, 37. What is their average mark?
  35. 35.Saanvi’s batting average after 5 innings is 39 runs. How many runs must Saanvi score in the next innings to raise the average to 44?
  36. 36.The average of 4 numbers is 23. When one more number is added, the average becomes 25. What number was added?
  37. 37.A shop sells an average of 72 kg of sugar a day for 3 days, and then 40 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  38. 38.A shop sells an average of 66 kg of sugar a day for 2 days, and then 44 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  39. 39.Marks of 6 friends in a quiz: 18, 37, 37, 28, 32, 16. What is their average mark?
  40. 40.A shop sells an average of 29 kg of sugar a day for 6 days, and then 75 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?

Answer key

  1. 39
  2. 31
  3. 29
  4. 78
  5. 69
  6. 38
  7. 29
  8. 54
  9. 75
  10. 26
  11. 44
  12. 86
  13. 69
  14. 57
  15. 68
  16. 27
  17. 26
  18. 90
  19. 27
  20. 42
  21. 49
  22. 49
  23. 34
  24. 43
  25. 27
  26. 69
  27. 62
  28. 35
  29. 60
  30. 65
  31. 41
  32. 72
  33. 28
  34. 35
  35. 69
  36. 33
  37. 56
  38. 55
  39. 28
  40. 52

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