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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 247 · 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 weight of 10 children is 30 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  2. 2.A shop sells an average of 36 kg of sugar a day for 2 days, and then 69 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  3. 3.Marks of 6 friends in a quiz: 46, 32, 52, 42, 42, 26. What is their average mark?
  4. 4.The average of 9 numbers is 34. When one more number is added, the average becomes 35. What number was added?
  5. 5.Tara’s batting average after 14 innings is 38 runs. How many runs must Tara score in the next innings to raise the average to 42?
  6. 6.Marks of 6 friends in a quiz: 67, 42, 65, 68, 56, 38. What is their average mark?
  7. 7.The average weight of 7 children is 43 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?
  8. 8.Marks of 5 friends in a quiz: 16, 31, 40, 16, 42. What is their average mark?
  9. 9.The average weight of 5 children is 31 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.Marks of 4 friends in a quiz: 15, 8, 35, 34. What is their average mark?
  11. 11.The average weight of 10 children is 40 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.The average weight of 6 children is 40 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.Rahul’s batting average after 15 innings is 25 runs. How many runs must Rahul score in the next innings to raise the average to 26?
  14. 14.A shop sells an average of 43 kg of sugar a day for 5 days, and then 51 kg a day for the next 3 days. What is the average sale per day for all 8 days (in kg)?
  15. 15.The average of 5 numbers is 19. When one more number is added, the average becomes 25. What number was added?
  16. 16.Marks of 5 friends in a quiz: 36, 32, 44, 37, 21. What is their average mark?
  17. 17.Marks of 6 friends in a quiz: 70, 65, 75, 69, 77, 40. What is their average mark?
  18. 18.A shop sells an average of 28 kg of sugar a day for 3 days, and then 24 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  19. 19.Manav’s batting average after 6 innings is 20 runs. How many runs must Manav score in the next innings to raise the average to 24?
  20. 20.The average of 4 numbers is 43. When one more number is added, the average becomes 48. What number was added?
  21. 21.Nisha’s batting average after 12 innings is 38 runs. How many runs must Nisha score in the next innings to raise the average to 40?
  22. 22.A shop sells an average of 56 kg of sugar a day for 4 days, and then 28 kg a day for the next 3 days. What is the average sale per day for all 7 days (in kg)?
  23. 23.Marks of 4 friends in a quiz: 66, 52, 58, 36. What is their average mark?
  24. 24.Marks of 5 friends in a quiz: 38, 46, 37, 47, 92. What is their average mark?
  25. 25.A shop sells an average of 34 kg of sugar a day for 2 days, and then 44 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  26. 26.The average of 5 numbers is 43. When one more number is added, the average becomes 44. What number was added?
  27. 27.The average weight of 12 children is 32 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.The average of 8 numbers is 51. When one more number is added, the average becomes 57. What number was added?
  29. 29.A shop sells an average of 52 kg of sugar a day for 3 days, and then 31 kg a day for the next 4 days. What is the average sale per day for all 7 days (in kg)?
  30. 30.The average weight of 11 children is 35 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  31. 31.A shop sells an average of 59 kg of sugar a day for 2 days, and then 29 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  32. 32.The average weight of 12 children is 47 kg. One child, who weighs 80 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.The average of 6 numbers is 32. When one more number is added, the average becomes 38. What number was added?
  34. 34.Dev’s batting average after 13 innings is 22 runs. How many runs must Dev score in the next innings to raise the average to 26?
  35. 35.Marks of 6 friends in a quiz: 21, 32, 11, 33, 18, 5. What is their average mark?
  36. 36.A shop sells an average of 61 kg of sugar a day for 3 days, and then 46 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  37. 37.A shop sells an average of 23 kg of sugar a day for 2 days, and then 29 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  38. 38.Marks of 4 friends in a quiz: 76, 90, 76, 58. What is their average mark?
  39. 39.The average of 7 numbers is 36. When one more number is added, the average becomes 38. What number was added?
  40. 40.The average of 7 numbers is 19. When one more number is added, the average becomes 23. What number was added?

Answer key

  1. 29
  2. 58
  3. 40
  4. 44
  5. 98
  6. 56
  7. 40
  8. 29
  9. 28
  10. 23
  11. 39
  12. 38
  13. 41
  14. 46
  15. 55
  16. 34
  17. 66
  18. 26
  19. 48
  20. 68
  21. 64
  22. 44
  23. 53
  24. 52
  25. 40
  26. 49
  27. 30
  28. 105
  29. 40
  30. 33
  31. 41
  32. 44
  33. 74
  34. 78
  35. 20
  36. 55
  37. 26
  38. 75
  39. 52
  40. 51

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