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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 85 · 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 9 children is 29 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  2. 2.The average weight of 6 children is 28 kg. One child, who weighs 33 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.Marks of 6 friends in a quiz: 30, 23, 23, 29, 10, 35. What is their average mark?
  4. 4.A shop sells an average of 76 kg of sugar a day for 6 days, and then 36 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  5. 5.Marks of 6 friends in a quiz: 24, 38, 42, 18, 13, 27. What is their average mark?
  6. 6.The average of 6 numbers is 37. When one more number is added, the average becomes 42. What number was added?
  7. 7.Marks of 4 friends in a quiz: 44, 26, 42, 8. What is their average mark?
  8. 8.Marks of 4 friends in a quiz: 60, 64, 60, 96. What is their average mark?
  9. 9.Pooja’s batting average after 10 innings is 22 runs. How many runs must Pooja score in the next innings to raise the average to 26?
  10. 10.Rahul’s batting average after 8 innings is 30 runs. How many runs must Rahul score in the next innings to raise the average to 35?
  11. 11.The average of 4 numbers is 56. When one more number is added, the average becomes 57. What number was added?
  12. 12.Marks of 6 friends in a quiz: 83, 82, 91, 63, 80, 69. What is their average mark?
  13. 13.The average of 8 numbers is 20. When one more number is added, the average becomes 25. What number was added?
  14. 14.The average weight of 7 children is 36 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  15. 15.The average of 9 numbers is 36. When one more number is added, the average becomes 37. What number was added?
  16. 16.The average weight of 6 children is 39 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.The average weight of 6 children is 45 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
  18. 18.Marks of 4 friends in a quiz: 48, 68, 66, 50. What is their average mark?
  19. 19.A shop sells an average of 52 kg of sugar a day for 5 days, and then 73 kg a day for the next 2 days. What is the average sale per day for all 7 days (in kg)?
  20. 20.Priya’s batting average after 15 innings is 50 runs. How many runs must Priya score in the next innings to raise the average to 51?
  21. 21.Ishaan’s batting average after 5 innings is 27 runs. How many runs must Ishaan score in the next innings to raise the average to 30?
  22. 22.The average weight of 12 children is 39 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.Arjun’s batting average after 8 innings is 36 runs. How many runs must Arjun score in the next innings to raise the average to 39?
  24. 24.The average weight of 8 children is 30 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.The average of 6 numbers is 47. When one more number is added, the average becomes 50. What number was added?
  26. 26.Rahul’s batting average after 5 innings is 33 runs. How many runs must Rahul score in the next innings to raise the average to 35?
  27. 27.The average of 8 numbers is 40. When one more number is added, the average becomes 45. What number was added?
  28. 28.Aarav’s batting average after 15 innings is 34 runs. How many runs must Aarav score in the next innings to raise the average to 39?
  29. 29.A shop sells an average of 47 kg of sugar a day for 3 days, and then 63 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  30. 30.Marks of 5 friends in a quiz: 24, 39, 47, 36, 24. What is their average mark?
  31. 31.The average of 9 numbers is 38. When one more number is added, the average becomes 39. What number was added?
  32. 32.The average weight of 7 children is 35 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.Farhan’s batting average after 5 innings is 41 runs. How many runs must Farhan score in the next innings to raise the average to 42?
  34. 34.Marks of 6 friends in a quiz: 78, 81, 63, 58, 72, 74. What is their average mark?
  35. 35.A shop sells an average of 20 kg of sugar a day for 2 days, and then 55 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  36. 36.A shop sells an average of 29 kg of sugar a day for 4 days, and then 77 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  37. 37.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)?
  38. 38.The average weight of 9 children is 41 kg. One child, who weighs 57 kg, leaves the group. What is the new average weight (in kg)?
  39. 39.The average of 9 numbers is 35. When one more number is added, the average becomes 41. What number was added?
  40. 40.Pooja’s batting average after 14 innings is 33 runs. How many runs must Pooja score in the next innings to raise the average to 37?

Answer key

  1. 28
  2. 27
  3. 25
  4. 66
  5. 27
  6. 72
  7. 30
  8. 70
  9. 66
  10. 75
  11. 61
  12. 78
  13. 65
  14. 33
  15. 46
  16. 36
  17. 42
  18. 58
  19. 58
  20. 66
  21. 45
  22. 37
  23. 63
  24. 29
  25. 68
  26. 45
  27. 85
  28. 114
  29. 55
  30. 34
  31. 48
  32. 32
  33. 47
  34. 71
  35. 41
  36. 45
  37. 34
  38. 39
  39. 95
  40. 93

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