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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 141 · 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 5 numbers is 30. When one more number is added, the average becomes 31. What number was added?
  2. 2.Aditya’s batting average after 5 innings is 20 runs. How many runs must Aditya score in the next innings to raise the average to 25?
  3. 3.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)?
  4. 4.The average of 6 numbers is 44. When one more number is added, the average becomes 49. What number was added?
  5. 5.A shop sells an average of 27 kg of sugar a day for 2 days, and then 23 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  6. 6.The average of 9 numbers is 42. When one more number is added, the average becomes 46. What number was added?
  7. 7.Marks of 6 friends in a quiz: 83, 59, 58, 78, 55, 81. What is their average mark?
  8. 8.A shop sells an average of 24 kg of sugar a day for 6 days, and then 20 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  9. 9.The average of 9 numbers is 43. When one more number is added, the average becomes 45. What number was added?
  10. 10.Marks of 6 friends in a quiz: 28, 40, 26, 28, 32, 80. What is their average mark?
  11. 11.The average of 9 numbers is 47. When one more number is added, the average becomes 48. What number was added?
  12. 12.The average of 5 numbers is 53. When one more number is added, the average becomes 54. What number was added?
  13. 13.Marks of 4 friends in a quiz: 56, 60, 69, 91. What is their average mark?
  14. 14.The average weight of 6 children is 30 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  15. 15.The average of 8 numbers is 55. When one more number is added, the average becomes 59. What number was added?
  16. 16.The average weight of 5 children is 40 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.Isha’s batting average after 7 innings is 44 runs. How many runs must Isha score in the next innings to raise the average to 48?
  18. 18.A shop sells an average of 78 kg of sugar a day for 2 days, and then 32 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  19. 19.Marks of 4 friends in a quiz: 30, 23, 38, 53. What is their average mark?
  20. 20.The average of 6 numbers is 18. When one more number is added, the average becomes 24. What number was added?
  21. 21.A shop sells an average of 55 kg of sugar a day for 2 days, and then 76 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  22. 22.The average of 9 numbers is 20. When one more number is added, the average becomes 22. What number was added?
  23. 23.Ananya’s batting average after 6 innings is 32 runs. How many runs must Ananya score in the next innings to raise the average to 33?
  24. 24.Karan’s batting average after 8 innings is 30 runs. How many runs must Karan score in the next innings to raise the average to 34?
  25. 25.A shop sells an average of 68 kg of sugar a day for 3 days, and then 36 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
  26. 26.A shop sells an average of 45 kg of sugar a day for 2 days, and then 29 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  27. 27.Marks of 6 friends in a quiz: 48, 50, 45, 31, 36, 6. What is their average mark?
  28. 28.The average weight of 11 children is 29 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  29. 29.The average of 7 numbers is 17. When one more number is added, the average becomes 19. What number was added?
  30. 30.Rohan’s batting average after 14 innings is 40 runs. How many runs must Rohan score in the next innings to raise the average to 42?
  31. 31.Marks of 5 friends in a quiz: 31, 43, 19, 20, 52. What is their average mark?
  32. 32.The average weight of 11 children is 41 kg. One child, who weighs 71 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.The average of 9 numbers is 19. When one more number is added, the average becomes 23. What number was added?
  34. 34.A shop sells an average of 20 kg of sugar a day for 2 days, and then 64 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  35. 35.Marks of 4 friends in a quiz: 64, 54, 57, 53. What is their average mark?
  36. 36.Isha’s batting average after 11 innings is 45 runs. How many runs must Isha score in the next innings to raise the average to 50?
  37. 37.Tara’s batting average after 9 innings is 43 runs. How many runs must Tara score in the next innings to raise the average to 46?
  38. 38.Marks of 4 friends in a quiz: 76, 92, 75, 85. What is their average mark?
  39. 39.A shop sells an average of 35 kg of sugar a day for 2 days, and then 49 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  40. 40.The average weight of 12 children is 34 kg. One child, who weighs 67 kg, leaves the group. What is the new average weight (in kg)?

Answer key

  1. 36
  2. 50
  3. 28
  4. 79
  5. 25
  6. 82
  7. 69
  8. 23
  9. 63
  10. 39
  11. 57
  12. 59
  13. 69
  14. 27
  15. 91
  16. 39
  17. 76
  18. 55
  19. 36
  20. 60
  21. 69
  22. 40
  23. 39
  24. 66
  25. 48
  26. 33
  27. 36
  28. 27
  29. 33
  30. 70
  31. 33
  32. 38
  33. 59
  34. 42
  35. 57
  36. 105
  37. 73
  38. 82
  39. 45
  40. 31

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