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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 50 · 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: 13, 42, 14, 36, 39, 18. What is their average mark?
  2. 2.The average of 5 numbers is 25. When one more number is added, the average becomes 28. What number was added?
  3. 3.Marks of 5 friends in a quiz: 67, 58, 55, 49, 81. What is their average mark?
  4. 4.Marks of 4 friends in a quiz: 64, 61, 39, 40. What is their average mark?
  5. 5.The average weight of 5 children is 31 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.Saanvi’s batting average after 13 innings is 47 runs. How many runs must Saanvi score in the next innings to raise the average to 52?
  7. 7.The average of 4 numbers is 45. When one more number is added, the average becomes 51. What number was added?
  8. 8.The average of 7 numbers is 36. When one more number is added, the average becomes 38. What number was added?
  9. 9.The average of 5 numbers is 17. When one more number is added, the average becomes 18. What number was added?
  10. 10.The average weight of 7 children is 33 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  11. 11.The average weight of 12 children is 41 kg. One child, who weighs 63 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.The average weight of 12 children is 46 kg. One child, who weighs 57 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.Marks of 6 friends in a quiz: 28, 15, 12, 15, 11, 57. What is their average mark?
  14. 14.Vivaan’s batting average after 9 innings is 39 runs. How many runs must Vivaan score in the next innings to raise the average to 40?
  15. 15.The average of 7 numbers is 60. When one more number is added, the average becomes 63. What number was added?
  16. 16.The average weight of 11 children is 46 kg. One child, who weighs 76 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.A shop sells an average of 28 kg of sugar a day for 3 days, and then 31 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  18. 18.Saanvi’s batting average after 14 innings is 24 runs. How many runs must Saanvi score in the next innings to raise the average to 28?
  19. 19.Aditya’s batting average after 13 innings is 41 runs. How many runs must Aditya score in the next innings to raise the average to 45?
  20. 20.Marks of 4 friends in a quiz: 39, 58, 31, 52. What is their average mark?
  21. 21.Isha’s batting average after 8 innings is 23 runs. How many runs must Isha score in the next innings to raise the average to 28?
  22. 22.The average weight of 8 children is 38 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.Isha’s batting average after 11 innings is 25 runs. How many runs must Isha score in the next innings to raise the average to 27?
  24. 24.The average of 5 numbers is 32. When one more number is added, the average becomes 33. What number was added?
  25. 25.Nisha’s batting average after 15 innings is 47 runs. How many runs must Nisha score in the next innings to raise the average to 49?
  26. 26.Marks of 5 friends in a quiz: 20, 20, 18, 35, 12. What is their average mark?
  27. 27.A shop sells an average of 55 kg of sugar a day for 6 days, and then 69 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  28. 28.Marks of 6 friends in a quiz: 43, 46, 46, 40, 51, 56. What is their average mark?
  29. 29.A shop sells an average of 27 kg of sugar a day for 4 days, and then 32 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  30. 30.Marks of 6 friends in a quiz: 51, 68, 78, 69, 79, 45. What is their average mark?
  31. 31.The average weight of 12 children is 38 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
  32. 32.A shop sells an average of 22 kg of sugar a day for 6 days, and then 34 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  33. 33.A shop sells an average of 61 kg of sugar a day for 5 days, and then 67 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  34. 34.The average weight of 6 children is 37 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.Marks of 6 friends in a quiz: 18, 27, 37, 12, 11, 51. What is their average mark?
  36. 36.Marks of 6 friends in a quiz: 42, 40, 22, 16, 27, 27. What is their average mark?
  37. 37.The average of 9 numbers is 15. When one more number is added, the average becomes 19. What number was added?
  38. 38.The average of 4 numbers is 48. When one more number is added, the average becomes 53. What number was added?
  39. 39.The average of 5 numbers is 31. When one more number is added, the average becomes 34. What number was added?
  40. 40.A shop sells an average of 59 kg of sugar a day for 3 days, and then 34 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?

Answer key

  1. 27
  2. 43
  3. 62
  4. 51
  5. 30
  6. 117
  7. 75
  8. 52
  9. 23
  10. 30
  11. 39
  12. 45
  13. 23
  14. 49
  15. 84
  16. 43
  17. 30
  18. 84
  19. 97
  20. 45
  21. 68
  22. 37
  23. 49
  24. 38
  25. 79
  26. 21
  27. 62
  28. 47
  29. 30
  30. 65
  31. 36
  32. 26
  33. 64
  34. 35
  35. 26
  36. 29
  37. 55
  38. 73
  39. 49
  40. 49

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