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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 205 · 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 9 numbers is 37. When one more number is added, the average becomes 39. What number was added?
  2. 2.The average of 5 numbers is 18. When one more number is added, the average becomes 22. What number was added?
  3. 3.Vivaan’s batting average after 5 innings is 33 runs. How many runs must Vivaan score in the next innings to raise the average to 37?
  4. 4.Marks of 4 friends in a quiz: 83, 81, 84, 28. What is their average mark?
  5. 5.A shop sells an average of 43 kg of sugar a day for 2 days, and then 79 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  6. 6.A shop sells an average of 78 kg of sugar a day for 6 days, and then 32 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  7. 7.The average of 6 numbers is 27. When one more number is added, the average becomes 28. What number was added?
  8. 8.A shop sells an average of 42 kg of sugar a day for 6 days, and then 62 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  9. 9.Ishaan’s batting average after 9 innings is 33 runs. How many runs must Ishaan score in the next innings to raise the average to 34?
  10. 10.The average of 6 numbers is 47. When one more number is added, the average becomes 49. What number was added?
  11. 11.The average weight of 6 children is 38 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.Ananya’s batting average after 10 innings is 28 runs. How many runs must Ananya score in the next innings to raise the average to 32?
  13. 13.Marks of 4 friends in a quiz: 42, 45, 56, 69. What is their average mark?
  14. 14.Marks of 4 friends in a quiz: 47, 64, 39, 46. What is their average mark?
  15. 15.The average weight of 11 children is 38 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  16. 16.Vivaan’s batting average after 9 innings is 42 runs. How many runs must Vivaan score in the next innings to raise the average to 43?
  17. 17.Marks of 6 friends in a quiz: 58, 50, 44, 50, 53, 63. What is their average mark?
  18. 18.The average of 8 numbers is 30. When one more number is added, the average becomes 32. What number was added?
  19. 19.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)?
  20. 20.A shop sells an average of 21 kg of sugar a day for 3 days, and then 27 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  21. 21.Marks of 5 friends in a quiz: 15, 33, 27, 15, 60. What is their average mark?
  22. 22.The average of 5 numbers is 18. When one more number is added, the average becomes 24. What number was added?
  23. 23.Dev’s batting average after 6 innings is 37 runs. How many runs must Dev score in the next innings to raise the average to 38?
  24. 24.Marks of 5 friends in a quiz: 33, 28, 14, 29, 26. What is their average mark?
  25. 25.Marks of 4 friends in a quiz: 101, 92, 89, 74. What is their average mark?
  26. 26.Ishaan’s batting average after 10 innings is 29 runs. How many runs must Ishaan score in the next innings to raise the average to 30?
  27. 27.Marks of 4 friends in a quiz: 63, 88, 84, 69. What is their average mark?
  28. 28.Farhan’s batting average after 7 innings is 34 runs. How many runs must Farhan score in the next innings to raise the average to 36?
  29. 29.A shop sells an average of 26 kg of sugar a day for 3 days, and then 68 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  30. 30.Marks of 4 friends in a quiz: 34, 29, 24, 5. What is their average mark?
  31. 31.Saanvi’s batting average after 10 innings is 34 runs. How many runs must Saanvi score in the next innings to raise the average to 38?
  32. 32.Marks of 6 friends in a quiz: 49, 63, 63, 49, 48, 64. What is their average mark?
  33. 33.A shop sells an average of 23 kg of sugar a day for 6 days, and then 79 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  34. 34.The average of 4 numbers is 56. When one more number is added, the average becomes 60. What number was added?
  35. 35.The average weight of 10 children is 45 kg. One child, who weighs 63 kg, leaves the group. What is the new average weight (in kg)?
  36. 36.The average of 8 numbers is 24. When one more number is added, the average becomes 27. What number was added?
  37. 37.Marks of 4 friends in a quiz: 50, 61, 60, 77. What is their average mark?
  38. 38.The average weight of 11 children is 41 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  39. 39.A shop sells an average of 35 kg of sugar a day for 2 days, and then 68 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  40. 40.The average of 6 numbers is 52. When one more number is added, the average becomes 53. What number was added?

Answer key

  1. 57
  2. 42
  3. 57
  4. 69
  5. 70
  6. 55
  7. 34
  8. 52
  9. 43
  10. 61
  11. 35
  12. 72
  13. 53
  14. 49
  15. 36
  16. 52
  17. 53
  18. 48
  19. 27
  20. 24
  21. 30
  22. 54
  23. 44
  24. 26
  25. 89
  26. 40
  27. 76
  28. 50
  29. 47
  30. 23
  31. 78
  32. 56
  33. 51
  34. 76
  35. 43
  36. 51
  37. 62
  38. 40
  39. 57
  40. 59

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