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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 405 · 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 7 children is 31 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  2. 2.The average of 7 numbers is 58. When one more number is added, the average becomes 60. What number was added?
  3. 3.Marks of 6 friends in a quiz: 55, 51, 37, 56, 46, 49. What is their average mark?
  4. 4.The average of 5 numbers is 17. When one more number is added, the average becomes 19. What number was added?
  5. 5.The average of 8 numbers is 16. When one more number is added, the average becomes 22. What number was added?
  6. 6.A shop sells an average of 25 kg of sugar a day for 2 days, and then 28 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  7. 7.A shop sells an average of 74 kg of sugar a day for 5 days, and then 50 kg a day for the next 3 days. What is the average sale per day for all 8 days (in kg)?
  8. 8.The average weight of 7 children is 29 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.Marks of 4 friends in a quiz: 64, 44, 68, 40. What is their average mark?
  10. 10.Marks of 4 friends in a quiz: 96, 78, 90, 76. What is their average mark?
  11. 11.Kavya’s batting average after 15 innings is 35 runs. How many runs must Kavya score in the next innings to raise the average to 40?
  12. 12.A shop sells an average of 45 kg of sugar a day for 3 days, and then 21 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
  13. 13.The average weight of 12 children is 45 kg. One child, who weighs 67 kg, leaves the group. What is the new average weight (in kg)?
  14. 14.The average of 5 numbers is 34. When one more number is added, the average becomes 39. What number was added?
  15. 15.Marks of 4 friends in a quiz: 57, 71, 52, 88. What is their average mark?
  16. 16.Marks of 4 friends in a quiz: 69, 76, 62, 69. What is their average mark?
  17. 17.Marks of 4 friends in a quiz: 39, 50, 36, 35. What is their average mark?
  18. 18.A shop sells an average of 39 kg of sugar a day for 2 days, and then 44 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  19. 19.Marks of 4 friends in a quiz: 52, 40, 43, 73. What is their average mark?
  20. 20.A shop sells an average of 46 kg of sugar a day for 2 days, and then 20 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  21. 21.The average of 6 numbers is 22. When one more number is added, the average becomes 25. What number was added?
  22. 22.The average weight of 10 children is 41 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.A shop sells an average of 26 kg of sugar a day for 6 days, and then 42 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  24. 24.The average of 8 numbers is 30. When one more number is added, the average becomes 34. What number was added?
  25. 25.Marks of 6 friends in a quiz: 65, 46, 73, 58, 49, 57. What is their average mark?
  26. 26.A shop sells an average of 36 kg of sugar a day for 6 days, and then 71 kg a day for the next 4 days. What is the average sale per day for all 10 days (in kg)?
  27. 27.A shop sells an average of 33 kg of sugar a day for 2 days, and then 66 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  28. 28.Marks of 4 friends in a quiz: 56, 70, 56, 94. What is their average mark?
  29. 29.Aarav’s batting average after 15 innings is 42 runs. How many runs must Aarav score in the next innings to raise the average to 43?
  30. 30.A shop sells an average of 41 kg of sugar a day for 4 days, and then 29 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  31. 31.A shop sells an average of 23 kg of sugar a day for 3 days, and then 59 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  32. 32.A shop sells an average of 31 kg of sugar a day for 6 days, and then 27 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  33. 33.The average of 9 numbers is 25. When one more number is added, the average becomes 30. What number was added?
  34. 34.The average of 8 numbers is 40. When one more number is added, the average becomes 44. What number was added?
  35. 35.A shop sells an average of 60 kg of sugar a day for 4 days, and then 75 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  36. 36.The average of 5 numbers is 45. When one more number is added, the average becomes 49. What number was added?
  37. 37.Meera’s batting average after 13 innings is 38 runs. How many runs must Meera score in the next innings to raise the average to 40?
  38. 38.The average of 7 numbers is 19. When one more number is added, the average becomes 25. What number was added?
  39. 39.Aditya’s batting average after 7 innings is 47 runs. How many runs must Aditya score in the next innings to raise the average to 50?
  40. 40.The average weight of 10 children is 43 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?

Answer key

  1. 28
  2. 74
  3. 49
  4. 29
  5. 70
  6. 27
  7. 65
  8. 26
  9. 54
  10. 85
  11. 115
  12. 30
  13. 43
  14. 64
  15. 67
  16. 69
  17. 40
  18. 42
  19. 52
  20. 33
  21. 43
  22. 40
  23. 34
  24. 66
  25. 58
  26. 50
  27. 55
  28. 69
  29. 58
  30. 35
  31. 47
  32. 29
  33. 75
  34. 76
  35. 65
  36. 69
  37. 66
  38. 67
  39. 71
  40. 41

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