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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 435 · 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 64 kg of sugar a day for 2 days, and then 30 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  2. 2.The average weight of 5 children is 45 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.Marks of 6 friends in a quiz: 44, 43, 55, 41, 60, 93. What is their average mark?
  4. 4.Marks of 6 friends in a quiz: 49, 21, 23, 24, 21, 66. What is their average mark?
  5. 5.The average of 5 numbers is 44. When one more number is added, the average becomes 48. What number was added?
  6. 6.The average of 4 numbers is 31. When one more number is added, the average becomes 37. What number was added?
  7. 7.The average weight of 12 children is 40 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  8. 8.Marks of 4 friends in a quiz: 48, 43, 57, 56. What is their average mark?
  9. 9.The average of 4 numbers is 15. When one more number is added, the average becomes 17. What number was added?
  10. 10.The average weight of 8 children is 40 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  11. 11.A shop sells an average of 27 kg of sugar a day for 2 days, and then 61 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  12. 12.The average of 6 numbers is 45. When one more number is added, the average becomes 51. What number was added?
  13. 13.Isha’s batting average after 15 innings is 25 runs. How many runs must Isha score in the next innings to raise the average to 30?
  14. 14.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)?
  15. 15.A shop sells an average of 68 kg of sugar a day for 5 days, and then 60 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  16. 16.A shop sells an average of 74 kg of sugar a day for 2 days, and then 78 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  17. 17.The average of 4 numbers is 16. When one more number is added, the average becomes 20. What number was added?
  18. 18.The average weight of 7 children is 39 kg. One child, who weighs 57 kg, leaves the group. What is the new average weight (in kg)?
  19. 19.Tara’s batting average after 10 innings is 21 runs. How many runs must Tara score in the next innings to raise the average to 22?
  20. 20.A shop sells an average of 70 kg of sugar a day for 4 days, and then 40 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  21. 21.Marks of 6 friends in a quiz: 48, 26, 27, 35, 43, 67. What is their average mark?
  22. 22.Ishaan’s batting average after 8 innings is 30 runs. How many runs must Ishaan score in the next innings to raise the average to 35?
  23. 23.Marks of 5 friends in a quiz: 53, 38, 65, 60, 34. What is their average mark?
  24. 24.The average weight of 10 children is 38 kg. One child, who weighs 56 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.The average weight of 11 children is 34 kg. One child, who weighs 64 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.The average weight of 9 children is 28 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.The average weight of 6 children is 34 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.Marks of 6 friends in a quiz: 27, 42, 34, 18, 28, 13. What is their average mark?
  29. 29.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)?
  30. 30.The average of 9 numbers is 49. When one more number is added, the average becomes 51. What number was added?
  31. 31.A shop sells an average of 20 kg of sugar a day for 5 days, and then 52 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  32. 32.Marks of 5 friends in a quiz: 27, 26, 32, 21, 64. What is their average mark?
  33. 33.The average weight of 7 children is 39 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.The average weight of 8 children is 47 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.Marks of 6 friends in a quiz: 57, 55, 41, 39, 46, 14. What is their average mark?
  36. 36.Marks of 4 friends in a quiz: 29, 28, 30, 61. What is their average mark?
  37. 37.Marks of 5 friends in a quiz: 40, 41, 53, 54, 67. What is their average mark?
  38. 38.A shop sells an average of 71 kg of sugar a day for 2 days, and then 51 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  39. 39.The average of 5 numbers is 34. When one more number is added, the average becomes 35. What number was added?
  40. 40.The average of 7 numbers is 59. When one more number is added, the average becomes 64. What number was added?

Answer key

  1. 47
  2. 43
  3. 56
  4. 34
  5. 68
  6. 61
  7. 39
  8. 51
  9. 25
  10. 38
  11. 44
  12. 87
  13. 105
  14. 27
  15. 64
  16. 77
  17. 36
  18. 36
  19. 32
  20. 52
  21. 41
  22. 75
  23. 50
  24. 36
  25. 31
  26. 27
  27. 31
  28. 27
  29. 29
  30. 69
  31. 36
  32. 34
  33. 37
  34. 45
  35. 42
  36. 37
  37. 51
  38. 56
  39. 40
  40. 99

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