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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 695 · 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 6 friends in a quiz: 34, 35, 34, 21, 33, 5. What is their average mark?
  2. 2.The average of 8 numbers is 26. When one more number is added, the average becomes 29. What number was added?
  3. 3.The average weight of 6 children is 31 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  4. 4.A shop sells an average of 39 kg of sugar a day for 6 days, and then 47 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  5. 5.The average of 4 numbers is 36. When one more number is added, the average becomes 40. What number was added?
  6. 6.Saanvi’s batting average after 9 innings is 35 runs. How many runs must Saanvi score in the next innings to raise the average to 39?
  7. 7.Kabir’s batting average after 9 innings is 21 runs. How many runs must Kabir score in the next innings to raise the average to 25?
  8. 8.The average weight of 6 children is 33 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.A shop sells an average of 28 kg of sugar a day for 6 days, and then 37 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  10. 10.A shop sells an average of 79 kg of sugar a day for 6 days, and then 52 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  11. 11.The average of 7 numbers is 23. When one more number is added, the average becomes 29. What number was added?
  12. 12.Aarav’s batting average after 5 innings is 22 runs. How many runs must Aarav score in the next innings to raise the average to 23?
  13. 13.The average weight of 10 children is 30 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  14. 14.Rohan’s batting average after 10 innings is 32 runs. How many runs must Rohan score in the next innings to raise the average to 34?
  15. 15.Marks of 6 friends in a quiz: 88, 89, 74, 97, 83, 91. What is their average mark?
  16. 16.The average of 9 numbers is 57. When one more number is added, the average becomes 60. What number was added?
  17. 17.Vivaan’s batting average after 11 innings is 20 runs. How many runs must Vivaan score in the next innings to raise the average to 24?
  18. 18.The average weight of 6 children is 40 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  19. 19.Marks of 5 friends in a quiz: 70, 62, 50, 57, 46. What is their average mark?
  20. 20.A shop sells an average of 20 kg of sugar a day for 4 days, and then 45 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  21. 21.The average of 4 numbers is 51. When one more number is added, the average becomes 52. What number was added?
  22. 22.Marks of 6 friends in a quiz: 71, 55, 64, 78, 70, 70. What is their average mark?
  23. 23.The average weight of 12 children is 43 kg. One child, who weighs 65 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.Marks of 6 friends in a quiz: 25, 23, 22, 34, 37, 33. What is their average mark?
  25. 25.The average of 4 numbers is 33. When one more number is added, the average becomes 38. What number was added?
  26. 26.The average of 7 numbers is 54. When one more number is added, the average becomes 60. What number was added?
  27. 27.The average of 5 numbers is 51. When one more number is added, the average becomes 53. What number was added?
  28. 28.The average of 4 numbers is 20. When one more number is added, the average becomes 21. What number was added?
  29. 29.The average of 9 numbers is 16. When one more number is added, the average becomes 20. What number was added?
  30. 30.Diya’s batting average after 9 innings is 27 runs. How many runs must Diya score in the next innings to raise the average to 29?
  31. 31.The average weight of 11 children is 28 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  32. 32.A shop sells an average of 24 kg of sugar a day for 3 days, and then 33 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  33. 33.The average of 7 numbers is 29. When one more number is added, the average becomes 31. What number was added?
  34. 34.Marks of 4 friends in a quiz: 43, 42, 29, 62. What is their average mark?
  35. 35.Zoya’s batting average after 10 innings is 25 runs. How many runs must Zoya score in the next innings to raise the average to 26?
  36. 36.A shop sells an average of 32 kg of sugar a day for 3 days, and then 36 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  37. 37.The average weight of 10 children is 28 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  38. 38.Zoya’s batting average after 15 innings is 35 runs. How many runs must Zoya score in the next innings to raise the average to 38?
  39. 39.The average weight of 9 children is 46 kg. One child, who weighs 70 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.A shop sells an average of 68 kg of sugar a day for 2 days, and then 34 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?

Answer key

  1. 27
  2. 53
  3. 28
  4. 41
  5. 56
  6. 75
  7. 61
  8. 30
  9. 31
  10. 70
  11. 71
  12. 28
  13. 29
  14. 54
  15. 87
  16. 87
  17. 68
  18. 37
  19. 57
  20. 35
  21. 56
  22. 68
  23. 41
  24. 29
  25. 58
  26. 102
  27. 63
  28. 25
  29. 56
  30. 47
  31. 26
  32. 30
  33. 45
  34. 44
  35. 36
  36. 34
  37. 27
  38. 83
  39. 43
  40. 51

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