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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 386 · 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 57. When one more number is added, the average becomes 61. What number was added?
  2. 2.Marks of 6 friends in a quiz: 54, 65, 66, 63, 63, 43. What is their average mark?
  3. 3.Marks of 5 friends in a quiz: 60, 61, 35, 33, 41. What is their average mark?
  4. 4.The average of 5 numbers is 28. When one more number is added, the average becomes 30. What number was added?
  5. 5.Aarav’s batting average after 14 innings is 48 runs. How many runs must Aarav score in the next innings to raise the average to 50?
  6. 6.The average weight of 9 children is 35 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  7. 7.Marks of 4 friends in a quiz: 52, 42, 26, 36. What is their average mark?
  8. 8.The average weight of 9 children is 37 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.A shop sells an average of 21 kg of sugar a day for 4 days, and then 30 kg a day for the next 5 days. What is the average sale per day for all 9 days (in kg)?
  10. 10.A shop sells an average of 60 kg of sugar a day for 6 days, and then 38 kg a day for the next 5 days. What is the average sale per day for all 11 days (in kg)?
  11. 11.The average of 8 numbers is 50. When one more number is added, the average becomes 55. What number was added?
  12. 12.A shop sells an average of 76 kg of sugar a day for 4 days, and then 41 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  13. 13.A shop sells an average of 80 kg of sugar a day for 2 days, and then 24 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  14. 14.Marks of 6 friends in a quiz: 94, 71, 74, 82, 94, 83. What is their average mark?
  15. 15.The average weight of 7 children is 28 kg. One child, who weighs 34 kg, leaves the group. What is the new average weight (in kg)?
  16. 16.Marks of 4 friends in a quiz: 25, 26, 51, 58. What is their average mark?
  17. 17.The average of 9 numbers is 53. When one more number is added, the average becomes 55. What number was added?
  18. 18.A shop sells an average of 75 kg of sugar a day for 2 days, and then 35 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  19. 19.Aditya’s batting average after 5 innings is 21 runs. How many runs must Aditya score in the next innings to raise the average to 22?
  20. 20.The average weight of 5 children is 42 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  21. 21.Diya’s batting average after 8 innings is 31 runs. How many runs must Diya score in the next innings to raise the average to 34?
  22. 22.The average of 9 numbers is 42. When one more number is added, the average becomes 48. What number was added?
  23. 23.The average of 4 numbers is 31. When one more number is added, the average becomes 37. What number was added?
  24. 24.A shop sells an average of 68 kg of sugar a day for 6 days, and then 54 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  25. 25.The average of 6 numbers is 50. When one more number is added, the average becomes 51. What number was added?
  26. 26.A shop sells an average of 68 kg of sugar a day for 6 days, and then 52 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  27. 27.The average weight of 9 children is 36 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.Marks of 4 friends in a quiz: 53, 73, 57, 53. What is their average mark?
  29. 29.Rohan’s batting average after 15 innings is 47 runs. How many runs must Rohan score in the next innings to raise the average to 51?
  30. 30.A shop sells an average of 77 kg of sugar a day for 2 days, and then 49 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  31. 31.Farhan’s batting average after 8 innings is 30 runs. How many runs must Farhan score in the next innings to raise the average to 34?
  32. 32.The average weight of 11 children is 27 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.Marks of 5 friends in a quiz: 73, 80, 59, 74, 54. What is their average mark?
  34. 34.The average weight of 9 children is 41 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.Isha’s batting average after 6 innings is 50 runs. How many runs must Isha score in the next innings to raise the average to 51?
  36. 36.The average of 4 numbers is 44. When one more number is added, the average becomes 49. What number was added?
  37. 37.The average weight of 11 children is 41 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?
  38. 38.The average weight of 11 children is 39 kg. One child, who weighs 69 kg, leaves the group. What is the new average weight (in kg)?
  39. 39.The average of 4 numbers is 22. When one more number is added, the average becomes 28. What number was added?
  40. 40.Marks of 4 friends in a quiz: 15, 21, 30, 14. What is their average mark?

Answer key

  1. 89
  2. 59
  3. 46
  4. 40
  5. 78
  6. 32
  7. 39
  8. 36
  9. 26
  10. 50
  11. 95
  12. 55
  13. 40
  14. 83
  15. 27
  16. 40
  17. 73
  18. 55
  19. 27
  20. 40
  21. 58
  22. 102
  23. 61
  24. 61
  25. 57
  26. 64
  27. 34
  28. 59
  29. 111
  30. 63
  31. 66
  32. 26
  33. 68
  34. 40
  35. 57
  36. 69
  37. 39
  38. 36
  39. 52
  40. 20

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