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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 146 · 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.A shop sells an average of 71 kg of sugar a day for 3 days, and then 31 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  2. 2.The average of 5 numbers is 35. When one more number is added, the average becomes 40. What number was added?
  3. 3.Marks of 4 friends in a quiz: 46, 27, 33, 42. What is their average mark?
  4. 4.The average of 5 numbers is 30. When one more number is added, the average becomes 34. What number was added?
  5. 5.The average weight of 11 children is 30 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.A shop sells an average of 73 kg of sugar a day for 2 days, and then 45 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  7. 7.The average of 9 numbers is 43. When one more number is added, the average becomes 48. What number was added?
  8. 8.The average of 4 numbers is 27. When one more number is added, the average becomes 29. What number was added?
  9. 9.The average of 4 numbers is 57. When one more number is added, the average becomes 59. What number was added?
  10. 10.The average of 4 numbers is 23. When one more number is added, the average becomes 24. What number was added?
  11. 11.The average weight of 5 children is 47 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.Marks of 4 friends in a quiz: 86, 63, 66, 89. What is their average mark?
  13. 13.A shop sells an average of 69 kg of sugar a day for 6 days, and then 57 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  14. 14.Marks of 4 friends in a quiz: 87, 86, 98, 65. What is their average mark?
  15. 15.A shop sells an average of 47 kg of sugar a day for 2 days, and then 41 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  16. 16.A shop sells an average of 69 kg of sugar a day for 2 days, and then 27 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  17. 17.Marks of 4 friends in a quiz: 51, 48, 46, 75. What is their average mark?
  18. 18.The average of 9 numbers is 46. When one more number is added, the average becomes 51. What number was added?
  19. 19.A shop sells an average of 38 kg of sugar a day for 6 days, and then 33 kg a day for the next 4 days. What is the average sale per day for all 10 days (in kg)?
  20. 20.Marks of 5 friends in a quiz: 48, 34, 50, 28, 25. What is their average mark?
  21. 21.A shop sells an average of 31 kg of sugar a day for 5 days, and then 59 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  22. 22.Marks of 5 friends in a quiz: 48, 33, 32, 44, 18. What is their average mark?
  23. 23.A shop sells an average of 21 kg of sugar a day for 2 days, and then 24 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  24. 24.The average weight of 7 children is 35 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.The average of 8 numbers is 58. When one more number is added, the average becomes 59. What number was added?
  26. 26.Isha’s batting average after 8 innings is 25 runs. How many runs must Isha score in the next innings to raise the average to 28?
  27. 27.Marks of 5 friends in a quiz: 51, 45, 64, 43, 42. What is their average mark?
  28. 28.Ishaan’s batting average after 7 innings is 38 runs. How many runs must Ishaan score in the next innings to raise the average to 43?
  29. 29.Kavya’s batting average after 12 innings is 39 runs. How many runs must Kavya score in the next innings to raise the average to 40?
  30. 30.A shop sells an average of 29 kg of sugar a day for 2 days, and then 61 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  31. 31.Marks of 6 friends in a quiz: 51, 64, 70, 52, 65, 88. What is their average mark?
  32. 32.A shop sells an average of 80 kg of sugar a day for 6 days, and then 24 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  33. 33.The average weight of 12 children is 36 kg. One child, who weighs 69 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.A shop sells an average of 26 kg of sugar a day for 6 days, and then 80 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  35. 35.A shop sells an average of 65 kg of sugar a day for 3 days, and then 74 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  36. 36.A shop sells an average of 53 kg of sugar a day for 2 days, and then 31 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  37. 37.A shop sells an average of 64 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)?
  38. 38.Marks of 4 friends in a quiz: 53, 59, 44, 32. What is their average mark?
  39. 39.Marks of 4 friends in a quiz: 29, 19, 35, 17. What is their average mark?
  40. 40.The average of 8 numbers is 52. When one more number is added, the average becomes 57. What number was added?

Answer key

  1. 55
  2. 65
  3. 37
  4. 54
  5. 29
  6. 53
  7. 93
  8. 37
  9. 67
  10. 28
  11. 44
  12. 76
  13. 66
  14. 84
  15. 44
  16. 39
  17. 55
  18. 96
  19. 36
  20. 37
  21. 45
  22. 35
  23. 23
  24. 33
  25. 67
  26. 52
  27. 49
  28. 78
  29. 52
  30. 53
  31. 65
  32. 66
  33. 33
  34. 44
  35. 71
  36. 42
  37. 55
  38. 47
  39. 25
  40. 97

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