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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 108 · 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.A shop sells an average of 58 kg of sugar a day for 5 days, and then 68 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  2. 2.The average of 8 numbers is 33. When one more number is added, the average becomes 37. What number was added?
  3. 3.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)?
  4. 4.Marks of 5 friends in a quiz: 96, 86, 78, 97, 73. What is their average mark?
  5. 5.The average of 9 numbers is 44. When one more number is added, the average becomes 47. What number was added?
  6. 6.The average of 6 numbers is 35. When one more number is added, the average becomes 36. What number was added?
  7. 7.Marks of 6 friends in a quiz: 69, 44, 58, 40, 45, 68. What is their average mark?
  8. 8.The average weight of 5 children is 28 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.The average of 7 numbers is 25. When one more number is added, the average becomes 31. What number was added?
  10. 10.The average weight of 7 children is 38 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  11. 11.Marks of 5 friends in a quiz: 66, 41, 50, 68, 50. What is their average mark?
  12. 12.The average weight of 8 children is 31 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.The average of 6 numbers is 60. When one more number is added, the average becomes 63. What number was added?
  14. 14.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)?
  15. 15.The average of 9 numbers is 38. When one more number is added, the average becomes 40. What number was added?
  16. 16.The average weight of 5 children is 45 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.A shop sells an average of 47 kg of sugar a day for 2 days, and then 77 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  18. 18.A shop sells an average of 75 kg of sugar a day for 2 days, and then 21 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  19. 19.Isha’s batting average after 11 innings is 29 runs. How many runs must Isha score in the next innings to raise the average to 31?
  20. 20.A shop sells an average of 36 kg of sugar a day for 2 days, and then 51 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  21. 21.A shop sells an average of 77 kg of sugar a day for 3 days, and then 42 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  22. 22.A shop sells an average of 47 kg of sugar a day for 3 days, and then 41 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  23. 23.Diya’s batting average after 14 innings is 39 runs. How many runs must Diya score in the next innings to raise the average to 40?
  24. 24.Marks of 4 friends in a quiz: 68, 63, 70, 91. What is their average mark?
  25. 25.The average of 4 numbers is 43. When one more number is added, the average becomes 49. What number was added?
  26. 26.The average of 5 numbers is 40. When one more number is added, the average becomes 42. What number was added?
  27. 27.The average weight of 12 children is 47 kg. One child, who weighs 69 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.Marks of 4 friends in a quiz: 43, 61, 49, 31. What is their average mark?
  29. 29.The average of 4 numbers is 30. When one more number is added, the average becomes 32. What number was added?
  30. 30.Marks of 4 friends in a quiz: 29, 33, 36, 70. What is their average mark?
  31. 31.Marks of 4 friends in a quiz: 77, 73, 76, 86. What is their average mark?
  32. 32.A shop sells an average of 58 kg of sugar a day for 2 days, and then 33 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  33. 33.The average weight of 5 children is 36 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.The average of 4 numbers is 55. When one more number is added, the average becomes 57. What number was added?
  35. 35.Marks of 6 friends in a quiz: 37, 32, 16, 13, 26, 14. What is their average mark?
  36. 36.The average weight of 8 children is 35 kg. One child, who weighs 42 kg, leaves the group. What is the new average weight (in kg)?
  37. 37.Marks of 6 friends in a quiz: 84, 74, 98, 80, 98, 76. What is their average mark?
  38. 38.Marks of 6 friends in a quiz: 56, 45, 47, 37, 33, 40. What is their average mark?
  39. 39.Marks of 4 friends in a quiz: 48, 63, 42, 63. What is their average mark?
  40. 40.Kabir’s batting average after 11 innings is 32 runs. How many runs must Kabir score in the next innings to raise the average to 33?

Answer key

  1. 63
  2. 69
  3. 45
  4. 86
  5. 74
  6. 42
  7. 54
  8. 26
  9. 73
  10. 36
  11. 55
  12. 30
  13. 81
  14. 36
  15. 58
  16. 43
  17. 65
  18. 48
  19. 53
  20. 45
  21. 63
  22. 44
  23. 54
  24. 73
  25. 73
  26. 52
  27. 45
  28. 46
  29. 40
  30. 42
  31. 78
  32. 43
  33. 33
  34. 65
  35. 23
  36. 34
  37. 85
  38. 43
  39. 54
  40. 44

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