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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 535 · 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.Marks of 6 friends in a quiz: 35, 63, 50, 50, 45, 51. What is their average mark?
  2. 2.Aarav’s batting average after 5 innings is 50 runs. How many runs must Aarav score in the next innings to raise the average to 52?
  3. 3.Marks of 4 friends in a quiz: 84, 75, 63, 82. What is their average mark?
  4. 4.The average of 8 numbers is 20. When one more number is added, the average becomes 23. What number was added?
  5. 5.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)?
  6. 6.Marks of 6 friends in a quiz: 68, 71, 59, 73, 62, 27. What is their average mark?
  7. 7.The average weight of 5 children is 29 kg. One child, who weighs 33 kg, leaves the group. What is the new average weight (in kg)?
  8. 8.A shop sells an average of 29 kg of sugar a day for 3 days, and then 50 kg a day for the next 4 days. What is the average sale per day for all 7 days (in kg)?
  9. 9.A shop sells an average of 66 kg of sugar a day for 5 days, and then 45 kg a day for the next 2 days. What is the average sale per day for all 7 days (in kg)?
  10. 10.The average weight of 5 children is 41 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  11. 11.The average of 5 numbers is 15. When one more number is added, the average becomes 19. What number was added?
  12. 12.Karan’s batting average after 14 innings is 35 runs. How many runs must Karan score in the next innings to raise the average to 40?
  13. 13.Marks of 4 friends in a quiz: 21, 22, 34, 7. What is their average mark?
  14. 14.A shop sells an average of 69 kg of sugar a day for 2 days, and then 33 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  15. 15.The average of 4 numbers is 45. When one more number is added, the average becomes 47. What number was added?
  16. 16.Kavya’s batting average after 10 innings is 31 runs. How many runs must Kavya score in the next innings to raise the average to 36?
  17. 17.Marks of 4 friends in a quiz: 13, 29, 9, 41. What is their average mark?
  18. 18.The average of 4 numbers is 48. When one more number is added, the average becomes 54. What number was added?
  19. 19.The average weight of 5 children is 38 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.Dev’s batting average after 13 innings is 27 runs. How many runs must Dev score in the next innings to raise the average to 28?
  21. 21.A shop sells an average of 55 kg of sugar a day for 6 days, and then 59 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  22. 22.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)?
  23. 23.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)?
  24. 24.Marks of 5 friends in a quiz: 73, 57, 67, 70, 63. What is their average mark?
  25. 25.The average weight of 5 children is 45 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.The average weight of 8 children is 44 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.The average weight of 5 children is 43 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.The average of 5 numbers is 31. When one more number is added, the average becomes 36. What number was added?
  29. 29.Marks of 5 friends in a quiz: 22, 35, 22, 40, 56. What is their average mark?
  30. 30.Farhan’s batting average after 5 innings is 31 runs. How many runs must Farhan score in the next innings to raise the average to 32?
  31. 31.Farhan’s batting average after 10 innings is 45 runs. How many runs must Farhan score in the next innings to raise the average to 48?
  32. 32.The average of 4 numbers is 34. When one more number is added, the average becomes 39. What number was added?
  33. 33.Marks of 6 friends in a quiz: 42, 41, 41, 27, 40, 7. What is their average mark?
  34. 34.Saanvi’s batting average after 8 innings is 33 runs. How many runs must Saanvi score in the next innings to raise the average to 34?
  35. 35.Nisha’s batting average after 8 innings is 21 runs. How many runs must Nisha score in the next innings to raise the average to 22?
  36. 36.A shop sells an average of 66 kg of sugar a day for 5 days, and then 80 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  37. 37.Marks of 5 friends in a quiz: 51, 67, 54, 81, 77. What is their average mark?
  38. 38.The average weight of 11 children is 30 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
  39. 39.The average weight of 12 children is 46 kg. One child, who weighs 79 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.A shop sells an average of 74 kg of sugar a day for 4 days, and then 79 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?

Answer key

  1. 49
  2. 62
  3. 76
  4. 47
  5. 42
  6. 60
  7. 28
  8. 41
  9. 60
  10. 39
  11. 39
  12. 110
  13. 21
  14. 45
  15. 55
  16. 86
  17. 23
  18. 78
  19. 36
  20. 41
  21. 56
  22. 31
  23. 43
  24. 66
  25. 44
  26. 43
  27. 41
  28. 61
  29. 35
  30. 37
  31. 78
  32. 59
  33. 33
  34. 42
  35. 30
  36. 73
  37. 66
  38. 27
  39. 43
  40. 77

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