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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 723 · 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 39 kg. One child, who weighs 66 kg, leaves the group. What is the new average weight (in kg)?
  2. 2.The average weight of 10 children is 35 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.Marks of 6 friends in a quiz: 46, 56, 56, 42, 58, 48. What is their average mark?
  4. 4.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)?
  5. 5.Marks of 5 friends in a quiz: 57, 42, 49, 57, 20. What is their average mark?
  6. 6.Marks of 5 friends in a quiz: 16, 34, 17, 23, 55. What is their average mark?
  7. 7.A shop sells an average of 32 kg of sugar a day for 4 days, and then 20 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  8. 8.The average of 5 numbers is 44. When one more number is added, the average becomes 45. What number was added?
  9. 9.The average of 4 numbers is 37. When one more number is added, the average becomes 40. What number was added?
  10. 10.The average of 5 numbers is 19. When one more number is added, the average becomes 25. What number was added?
  11. 11.The average weight of 10 children is 37 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.A shop sells an average of 31 kg of sugar a day for 5 days, and then 76 kg a day for the next 4 days. What is the average sale per day for all 9 days (in kg)?
  13. 13.The average of 4 numbers is 31. When one more number is added, the average becomes 37. What number was added?
  14. 14.A shop sells an average of 61 kg of sugar a day for 4 days, and then 71 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  15. 15.The average of 9 numbers is 37. When one more number is added, the average becomes 38. What number was added?
  16. 16.Nisha’s batting average after 14 innings is 48 runs. How many runs must Nisha score in the next innings to raise the average to 50?
  17. 17.Isha’s batting average after 7 innings is 23 runs. How many runs must Isha score in the next innings to raise the average to 26?
  18. 18.Kabir’s batting average after 9 innings is 21 runs. How many runs must Kabir score in the next innings to raise the average to 26?
  19. 19.The average weight of 7 children is 46 kg. One child, who weighs 64 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.A shop sells an average of 32 kg of sugar a day for 6 days, and then 56 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  21. 21.The average of 4 numbers is 15. When one more number is added, the average becomes 21. What number was added?
  22. 22.The average weight of 9 children is 36 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.Marks of 6 friends in a quiz: 57, 64, 65, 71, 63, 58. What is their average mark?
  24. 24.Marks of 4 friends in a quiz: 47, 42, 30, 49. What is their average mark?
  25. 25.Marks of 5 friends in a quiz: 20, 19, 40, 12, 39. What is their average mark?
  26. 26.Manav’s batting average after 12 innings is 41 runs. How many runs must Manav score in the next innings to raise the average to 46?
  27. 27.The average weight of 8 children is 40 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.Marks of 6 friends in a quiz: 77, 74, 73, 78, 84, 70. What is their average mark?
  29. 29.The average of 9 numbers is 46. When one more number is added, the average becomes 47. What number was added?
  30. 30.The average of 5 numbers is 43. When one more number is added, the average becomes 44. What number was added?
  31. 31.Kavya’s batting average after 6 innings is 22 runs. How many runs must Kavya score in the next innings to raise the average to 26?
  32. 32.A shop sells an average of 27 kg of sugar a day for 4 days, and then 62 kg a day for the next 3 days. What is the average sale per day for all 7 days (in kg)?
  33. 33.The average weight of 5 children is 35 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.Marks of 6 friends in a quiz: 17, 6, 35, 26, 20, 16. What is their average mark?
  35. 35.Farhan’s batting average after 13 innings is 50 runs. How many runs must Farhan score in the next innings to raise the average to 55?
  36. 36.The average of 8 numbers is 18. When one more number is added, the average becomes 19. What number was added?
  37. 37.The average of 8 numbers is 42. When one more number is added, the average becomes 48. What number was added?
  38. 38.The average weight of 6 children is 31 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  39. 39.Marks of 4 friends in a quiz: 35, 62, 55, 48. What is their average mark?
  40. 40.The average of 4 numbers is 26. When one more number is added, the average becomes 29. What number was added?

Answer key

  1. 36
  2. 34
  3. 51
  4. 44
  5. 45
  6. 29
  7. 28
  8. 50
  9. 52
  10. 55
  11. 35
  12. 51
  13. 61
  14. 67
  15. 47
  16. 78
  17. 47
  18. 71
  19. 43
  20. 44
  21. 45
  22. 35
  23. 63
  24. 42
  25. 26
  26. 106
  27. 39
  28. 76
  29. 56
  30. 49
  31. 50
  32. 42
  33. 34
  34. 20
  35. 120
  36. 27
  37. 96
  38. 28
  39. 50
  40. 41

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