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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 450 · 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 of 7 numbers is 46. When one more number is added, the average becomes 51. What number was added?
  2. 2.A shop sells an average of 20 kg of sugar a day for 3 days, and then 62 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  3. 3.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)?
  4. 4.Vivaan’s batting average after 10 innings is 43 runs. How many runs must Vivaan score in the next innings to raise the average to 46?
  5. 5.Tara’s batting average after 10 innings is 32 runs. How many runs must Tara score in the next innings to raise the average to 34?
  6. 6.The average of 6 numbers is 52. When one more number is added, the average becomes 53. What number was added?
  7. 7.The average of 7 numbers is 24. When one more number is added, the average becomes 30. What number was added?
  8. 8.The average weight of 11 children is 39 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.The average weight of 7 children is 36 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.Marks of 4 friends in a quiz: 57, 55, 77, 79. What is their average mark?
  11. 11.The average of 9 numbers is 20. When one more number is added, the average becomes 26. What number was added?
  12. 12.The average of 8 numbers is 57. When one more number is added, the average becomes 62. What number was added?
  13. 13.The average weight of 11 children is 28 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  14. 14.Marks of 5 friends in a quiz: 92, 81, 90, 74, 68. What is their average mark?
  15. 15.The average of 7 numbers is 57. When one more number is added, the average becomes 60. What number was added?
  16. 16.Nisha’s batting average after 6 innings is 23 runs. How many runs must Nisha score in the next innings to raise the average to 27?
  17. 17.Marks of 5 friends in a quiz: 47, 30, 39, 19, 30. What is their average mark?
  18. 18.Dev’s batting average after 5 innings is 41 runs. How many runs must Dev score in the next innings to raise the average to 43?
  19. 19.The average of 5 numbers is 15. When one more number is added, the average becomes 21. What number was added?
  20. 20.The average of 6 numbers is 28. When one more number is added, the average becomes 33. What number was added?
  21. 21.The average of 8 numbers is 16. When one more number is added, the average becomes 22. What number was added?
  22. 22.The average weight of 12 children is 34 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.The average weight of 11 children is 35 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.The average of 8 numbers is 46. When one more number is added, the average becomes 49. What number was added?
  25. 25.A shop sells an average of 67 kg of sugar a day for 5 days, and then 73 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  26. 26.The average weight of 9 children is 31 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.The average weight of 5 children is 46 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.Marks of 5 friends in a quiz: 22, 14, 22, 11, 31. What is their average mark?
  29. 29.The average of 9 numbers is 39. When one more number is added, the average becomes 40. What number was added?
  30. 30.The average of 8 numbers is 57. When one more number is added, the average becomes 61. What number was added?
  31. 31.Priya’s batting average after 14 innings is 25 runs. How many runs must Priya score in the next innings to raise the average to 26?
  32. 32.Diya’s batting average after 15 innings is 26 runs. How many runs must Diya score in the next innings to raise the average to 30?
  33. 33.The average weight of 12 children is 42 kg. One child, who weighs 64 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.A shop sells an average of 67 kg of sugar a day for 3 days, and then 71 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  35. 35.The average of 7 numbers is 60. When one more number is added, the average becomes 65. What number was added?
  36. 36.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)?
  37. 37.Marks of 4 friends in a quiz: 34, 32, 35, 11. What is their average mark?
  38. 38.The average of 4 numbers is 60. When one more number is added, the average becomes 64. What number was added?
  39. 39.Marks of 4 friends in a quiz: 55, 78, 69, 62. What is their average mark?
  40. 40.A shop sells an average of 49 kg of sugar a day for 3 days, and then 35 kg a day for the next 4 days. What is the average sale per day for all 7 days (in kg)?

Answer key

  1. 86
  2. 41
  3. 42
  4. 76
  5. 54
  6. 59
  7. 72
  8. 37
  9. 34
  10. 67
  11. 80
  12. 102
  13. 25
  14. 81
  15. 81
  16. 51
  17. 33
  18. 53
  19. 51
  20. 63
  21. 70
  22. 33
  23. 34
  24. 73
  25. 70
  26. 30
  27. 45
  28. 20
  29. 49
  30. 93
  31. 40
  32. 90
  33. 40
  34. 69
  35. 100
  36. 28
  37. 28
  38. 80
  39. 66
  40. 41

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