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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 657 · 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 5 friends in a quiz: 34, 34, 27, 42, 13. What is their average mark?
  2. 2.The average weight of 7 children is 37 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.A shop sells an average of 22 kg of sugar a day for 3 days, and then 43 kg a day for the next 4 days. What is the average sale per day for all 7 days (in kg)?
  4. 4.The average of 5 numbers is 38. When one more number is added, the average becomes 42. What number was added?
  5. 5.The average of 5 numbers is 49. When one more number is added, the average becomes 55. What number was added?
  6. 6.A shop sells an average of 22 kg of sugar a day for 4 days, and then 47 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  7. 7.The average weight of 7 children is 41 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  8. 8.The average of 9 numbers is 20. When one more number is added, the average becomes 26. What number was added?
  9. 9.The average of 6 numbers is 22. When one more number is added, the average becomes 24. What number was added?
  10. 10.The average of 5 numbers is 40. When one more number is added, the average becomes 41. What number was added?
  11. 11.Saanvi’s batting average after 12 innings is 35 runs. How many runs must Saanvi score in the next innings to raise the average to 39?
  12. 12.Marks of 4 friends in a quiz: 80, 66, 67, 79. What is their average mark?
  13. 13.Marks of 5 friends in a quiz: 24, 29, 29, 24, 64. What is their average mark?
  14. 14.A shop sells an average of 41 kg of sugar a day for 2 days, and then 53 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  15. 15.The average of 9 numbers is 16. When one more number is added, the average becomes 20. What number was added?
  16. 16.Marks of 5 friends in a quiz: 11, 19, 14, 28, 48. What is their average mark?
  17. 17.Marks of 4 friends in a quiz: 63, 59, 84, 90. What is their average mark?
  18. 18.Marks of 4 friends in a quiz: 49, 51, 74, 74. What is their average mark?
  19. 19.Zoya’s batting average after 10 innings is 48 runs. How many runs must Zoya score in the next innings to raise the average to 50?
  20. 20.The average of 9 numbers is 36. When one more number is added, the average becomes 40. What number was added?
  21. 21.The average of 7 numbers is 55. When one more number is added, the average becomes 58. What number was added?
  22. 22.The average of 8 numbers is 36. When one more number is added, the average becomes 37. What number was added?
  23. 23.The average of 9 numbers is 36. When one more number is added, the average becomes 42. What number was added?
  24. 24.A shop sells an average of 20 kg of sugar a day for 5 days, and then 76 kg a day for the next 2 days. What is the average sale per day for all 7 days (in kg)?
  25. 25.Marks of 6 friends in a quiz: 18, 16, 29, 43, 18, 44. What is their average mark?
  26. 26.Tara’s batting average after 5 innings is 30 runs. How many runs must Tara score in the next innings to raise the average to 31?
  27. 27.Marks of 6 friends in a quiz: 62, 74, 45, 60, 52, 67. What is their average mark?
  28. 28.A shop sells an average of 37 kg of sugar a day for 2 days, and then 62 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  29. 29.Marks of 6 friends in a quiz: 63, 64, 55, 51, 45, 82. What is their average mark?
  30. 30.The average of 8 numbers is 24. When one more number is added, the average becomes 25. What number was added?
  31. 31.The average of 4 numbers is 28. When one more number is added, the average becomes 30. What number was added?
  32. 32.Nisha’s batting average after 7 innings is 36 runs. How many runs must Nisha score in the next innings to raise the average to 38?
  33. 33.Rohan’s batting average after 12 innings is 20 runs. How many runs must Rohan score in the next innings to raise the average to 23?
  34. 34.The average weight of 12 children is 42 kg. One child, who weighs 75 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.Marks of 4 friends in a quiz: 45, 39, 41, 31. What is their average mark?
  36. 36.The average of 8 numbers is 46. When one more number is added, the average becomes 47. What number was added?
  37. 37.The average weight of 5 children is 29 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  38. 38.A shop sells an average of 53 kg of sugar a day for 4 days, and then 79 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  39. 39.The average of 5 numbers is 53. When one more number is added, the average becomes 58. What number was added?
  40. 40.The average of 4 numbers is 25. When one more number is added, the average becomes 31. What number was added?

Answer key

  1. 30
  2. 36
  3. 34
  4. 62
  5. 85
  6. 37
  7. 39
  8. 80
  9. 36
  10. 46
  11. 87
  12. 73
  13. 34
  14. 47
  15. 56
  16. 24
  17. 74
  18. 62
  19. 70
  20. 76
  21. 79
  22. 45
  23. 96
  24. 36
  25. 28
  26. 36
  27. 60
  28. 52
  29. 60
  30. 33
  31. 38
  32. 52
  33. 59
  34. 39
  35. 39
  36. 55
  37. 27
  38. 66
  39. 83
  40. 55

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