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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 22 · 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 7 numbers is 39. When one more number is added, the average becomes 40. What number was added?
  2. 2.The average weight of 7 children is 29 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.A shop sells an average of 46 kg of sugar a day for 2 days, and then 28 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  4. 4.The average of 5 numbers is 17. When one more number is added, the average becomes 21. What number was added?
  5. 5.The average of 9 numbers is 20. When one more number is added, the average becomes 22. What number was added?
  6. 6.The average of 8 numbers is 26. When one more number is added, the average becomes 32. What number was added?
  7. 7.The average weight of 11 children is 29 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  8. 8.A shop sells an average of 75 kg of sugar a day for 3 days, and then 30 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  9. 9.Marks of 4 friends in a quiz: 40, 34, 33, 25. What is their average mark?
  10. 10.Marks of 4 friends in a quiz: 31, 22, 16, 43. What is their average mark?
  11. 11.Marks of 5 friends in a quiz: 59, 51, 33, 37, 55. What is their average mark?
  12. 12.Marks of 4 friends in a quiz: 79, 91, 74, 96. What is their average mark?
  13. 13.The average weight of 8 children is 45 kg. One child, who weighs 66 kg, leaves the group. What is the new average weight (in kg)?
  14. 14.A shop sells an average of 67 kg of sugar a day for 4 days, and then 52 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  15. 15.Marks of 5 friends in a quiz: 67, 56, 50, 55, 87. What is their average mark?
  16. 16.Manav’s batting average after 11 innings is 24 runs. How many runs must Manav score in the next innings to raise the average to 29?
  17. 17.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)?
  18. 18.Marks of 6 friends in a quiz: 26, 22, 34, 27, 19, 70. What is their average mark?
  19. 19.Marks of 5 friends in a quiz: 53, 66, 44, 65, 27. What is their average mark?
  20. 20.Marks of 4 friends in a quiz: 49, 42, 53, 56. What is their average mark?
  21. 21.Marks of 5 friends in a quiz: 49, 58, 40, 65, 58. What is their average mark?
  22. 22.The average weight of 5 children is 46 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.The average of 8 numbers is 28. When one more number is added, the average becomes 29. What number was added?
  24. 24.The average weight of 6 children is 30 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.The average weight of 8 children is 47 kg. One child, who weighs 68 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.Marks of 4 friends in a quiz: 50, 44, 49, 57. What is their average mark?
  27. 27.The average weight of 10 children is 35 kg. One child, who weighs 62 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.Marks of 4 friends in a quiz: 36, 26, 20, 30. What is their average mark?
  29. 29.The average weight of 6 children is 44 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  30. 30.The average weight of 11 children is 31 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  31. 31.A shop sells an average of 76 kg of sugar a day for 2 days, and then 72 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  32. 32.The average weight of 8 children is 39 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.A shop sells an average of 23 kg of sugar a day for 2 days, and then 75 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  34. 34.The average weight of 6 children is 38 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.The average of 6 numbers is 44. When one more number is added, the average becomes 45. What number was added?
  36. 36.Marks of 4 friends in a quiz: 25, 31, 21, 59. What is their average mark?
  37. 37.The average of 6 numbers is 48. When one more number is added, the average becomes 49. What number was added?
  38. 38.A shop sells an average of 50 kg of sugar a day for 4 days, and then 66 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  39. 39.A shop sells an average of 48 kg of sugar a day for 2 days, and then 63 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  40. 40.The average weight of 11 children is 47 kg. One child, who weighs 67 kg, leaves the group. What is the new average weight (in kg)?

Answer key

  1. 47
  2. 28
  3. 34
  4. 41
  5. 40
  6. 80
  7. 27
  8. 45
  9. 33
  10. 28
  11. 47
  12. 85
  13. 42
  14. 62
  15. 63
  16. 84
  17. 43
  18. 33
  19. 51
  20. 50
  21. 54
  22. 45
  23. 37
  24. 28
  25. 44
  26. 50
  27. 32
  28. 28
  29. 42
  30. 29
  31. 73
  32. 37
  33. 49
  34. 36
  35. 51
  36. 34
  37. 55
  38. 58
  39. 57
  40. 45

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