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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 160 · 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 4 friends in a quiz: 80, 97, 94, 85. What is their average mark?
  2. 2.A shop sells an average of 77 kg of sugar a day for 6 days, and then 25 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  3. 3.The average of 5 numbers is 30. When one more number is added, the average becomes 35. What number was added?
  4. 4.The average of 9 numbers is 36. When one more number is added, the average becomes 38. What number was added?
  5. 5.The average weight of 5 children is 39 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.Vivaan’s batting average after 15 innings is 36 runs. How many runs must Vivaan score in the next innings to raise the average to 38?
  7. 7.Marks of 6 friends in a quiz: 37, 43, 45, 41, 42, 86. What is their average mark?
  8. 8.Zoya’s batting average after 10 innings is 50 runs. How many runs must Zoya score in the next innings to raise the average to 55?
  9. 9.Sneha’s batting average after 14 innings is 23 runs. How many runs must Sneha score in the next innings to raise the average to 24?
  10. 10.Tara’s batting average after 6 innings is 45 runs. How many runs must Tara score in the next innings to raise the average to 49?
  11. 11.The average of 4 numbers is 53. When one more number is added, the average becomes 55. What number was added?
  12. 12.A shop sells an average of 41 kg of sugar a day for 3 days, and then 68 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  13. 13.Marks of 6 friends in a quiz: 29, 30, 57, 44, 56, 36. What is their average mark?
  14. 14.Marks of 5 friends in a quiz: 33, 7, 13, 21, 31. What is their average mark?
  15. 15.The average of 8 numbers is 58. When one more number is added, the average becomes 59. What number was added?
  16. 16.The average of 4 numbers is 28. When one more number is added, the average becomes 31. What number was added?
  17. 17.The average weight of 7 children is 31 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  18. 18.Zoya’s batting average after 14 innings is 30 runs. How many runs must Zoya score in the next innings to raise the average to 33?
  19. 19.A shop sells an average of 51 kg of sugar a day for 4 days, and then 29 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  20. 20.The average of 8 numbers is 58. When one more number is added, the average becomes 62. What number was added?
  21. 21.The average weight of 7 children is 34 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  22. 22.The average of 4 numbers is 17. When one more number is added, the average becomes 21. What number was added?
  23. 23.Marks of 4 friends in a quiz: 75, 55, 70, 76. What is their average mark?
  24. 24.Marks of 5 friends in a quiz: 40, 40, 54, 51, 55. What is their average mark?
  25. 25.Arjun’s batting average after 5 innings is 32 runs. How many runs must Arjun score in the next innings to raise the average to 36?
  26. 26.Marks of 6 friends in a quiz: 51, 41, 62, 51, 54, 59. What is their average mark?
  27. 27.A shop sells an average of 57 kg of sugar a day for 6 days, and then 42 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  28. 28.A shop sells an average of 44 kg of sugar a day for 6 days, and then 35 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  29. 29.The average of 9 numbers is 15. When one more number is added, the average becomes 16. What number was added?
  30. 30.Marks of 6 friends in a quiz: 82, 87, 77, 95, 87, 88. What is their average mark?
  31. 31.Nisha’s batting average after 8 innings is 37 runs. How many runs must Nisha score in the next innings to raise the average to 41?
  32. 32.Marks of 4 friends in a quiz: 38, 29, 30, 47. What is their average mark?
  33. 33.A shop sells an average of 30 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)?
  34. 34.A shop sells an average of 32 kg of sugar a day for 2 days, and then 24 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  35. 35.The average of 7 numbers is 37. When one more number is added, the average becomes 43. What number was added?
  36. 36.Isha’s batting average after 13 innings is 47 runs. How many runs must Isha score in the next innings to raise the average to 49?
  37. 37.A shop sells an average of 35 kg of sugar a day for 6 days, and then 44 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  38. 38.The average of 8 numbers is 37. When one more number is added, the average becomes 43. What number was added?
  39. 39.A shop sells an average of 44 kg of sugar a day for 3 days, and then 20 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  40. 40.The average of 7 numbers is 55. When one more number is added, the average becomes 59. What number was added?

Answer key

  1. 89
  2. 64
  3. 60
  4. 56
  5. 38
  6. 68
  7. 49
  8. 105
  9. 38
  10. 73
  11. 63
  12. 59
  13. 42
  14. 21
  15. 67
  16. 43
  17. 30
  18. 75
  19. 40
  20. 94
  21. 33
  22. 37
  23. 69
  24. 48
  25. 56
  26. 53
  27. 52
  28. 41
  29. 25
  30. 86
  31. 73
  32. 36
  33. 31
  34. 26
  35. 85
  36. 75
  37. 38
  38. 91
  39. 32
  40. 87

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