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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 668 · 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 9 numbers is 55. When one more number is added, the average becomes 58. What number was added?
  2. 2.The average weight of 7 children is 47 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.The average of 7 numbers is 60. When one more number is added, the average becomes 66. What number was added?
  4. 4.A shop sells an average of 40 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)?
  5. 5.The average of 4 numbers is 17. When one more number is added, the average becomes 20. What number was added?
  6. 6.The average of 9 numbers is 32. When one more number is added, the average becomes 34. What number was added?
  7. 7.Marks of 6 friends in a quiz: 28, 49, 42, 51, 53, 17. What is their average mark?
  8. 8.A shop sells an average of 65 kg of sugar a day for 5 days, and then 63 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  9. 9.The average of 5 numbers is 36. When one more number is added, the average becomes 38. What number was added?
  10. 10.The average weight of 7 children is 34 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  11. 11.A shop sells an average of 31 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)?
  12. 12.The average weight of 6 children is 33 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.Marks of 5 friends in a quiz: 77, 59, 50, 54, 75. What is their average mark?
  14. 14.Marks of 4 friends in a quiz: 29, 40, 34, 61. What is their average mark?
  15. 15.A shop sells an average of 45 kg of sugar a day for 6 days, and then 35 kg a day for the next 4 days. What is the average sale per day for all 10 days (in kg)?
  16. 16.Marks of 5 friends in a quiz: 89, 75, 72, 80, 59. What is their average mark?
  17. 17.Marks of 4 friends in a quiz: 42, 47, 60, 71. What is their average mark?
  18. 18.Marks of 4 friends in a quiz: 40, 53, 54, 17. What is their average mark?
  19. 19.Marks of 5 friends in a quiz: 38, 50, 48, 41, 58. What is their average mark?
  20. 20.The average weight of 9 children is 32 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  21. 21.A shop sells an average of 21 kg of sugar a day for 2 days, and then 31 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  22. 22.A shop sells an average of 60 kg of sugar a day for 3 days, and then 54 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  23. 23.The average weight of 10 children is 46 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.Kabir’s batting average after 8 innings is 40 runs. How many runs must Kabir score in the next innings to raise the average to 42?
  25. 25.Marks of 5 friends in a quiz: 45, 54, 53, 68, 45. What is their average mark?
  26. 26.The average weight of 5 children is 35 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.Nisha’s batting average after 12 innings is 24 runs. How many runs must Nisha score in the next innings to raise the average to 26?
  28. 28.The average weight of 7 children is 35 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  29. 29.Kabir’s batting average after 8 innings is 38 runs. How many runs must Kabir score in the next innings to raise the average to 40?
  30. 30.Saanvi’s batting average after 8 innings is 40 runs. How many runs must Saanvi score in the next innings to raise the average to 41?
  31. 31.A shop sells an average of 32 kg of sugar a day for 6 days, and then 54 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  32. 32.The average of 7 numbers is 35. When one more number is added, the average becomes 41. What number was added?
  33. 33.The average of 4 numbers is 41. When one more number is added, the average becomes 42. What number was added?
  34. 34.Marks of 5 friends in a quiz: 31, 24, 10, 16, 19. What is their average mark?
  35. 35.The average weight of 9 children is 30 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
  36. 36.Arjun’s batting average after 14 innings is 21 runs. How many runs must Arjun score in the next innings to raise the average to 24?
  37. 37.The average of 7 numbers is 25. When one more number is added, the average becomes 30. What number was added?
  38. 38.A shop sells an average of 36 kg of sugar a day for 3 days, and then 74 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  39. 39.The average weight of 7 children is 42 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.Marks of 5 friends in a quiz: 61, 75, 74, 78, 57. What is their average mark?

Answer key

  1. 85
  2. 45
  3. 108
  4. 30
  5. 32
  6. 52
  7. 40
  8. 64
  9. 48
  10. 31
  11. 33
  12. 31
  13. 63
  14. 41
  15. 41
  16. 75
  17. 55
  18. 41
  19. 47
  20. 30
  21. 27
  22. 56
  23. 45
  24. 58
  25. 53
  26. 33
  27. 50
  28. 33
  29. 56
  30. 49
  31. 43
  32. 83
  33. 46
  34. 20
  35. 29
  36. 66
  37. 65
  38. 55
  39. 41
  40. 69

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