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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 559 · 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.Marks of 5 friends in a quiz: 45, 24, 27, 29, 60. What is their average mark?
  2. 2.The average of 7 numbers is 47. When one more number is added, the average becomes 51. What number was added?
  3. 3.The average of 5 numbers is 59. When one more number is added, the average becomes 62. What number was added?
  4. 4.The average of 9 numbers is 45. When one more number is added, the average becomes 48. What number was added?
  5. 5.Kavya’s batting average after 7 innings is 28 runs. How many runs must Kavya score in the next innings to raise the average to 29?
  6. 6.The average of 7 numbers is 23. When one more number is added, the average becomes 24. What number was added?
  7. 7.A shop sells an average of 63 kg of sugar a day for 2 days, and then 41 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  8. 8.The average weight of 5 children is 44 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.Marks of 5 friends in a quiz: 63, 61, 84, 66, 76. What is their average mark?
  10. 10.Dev’s batting average after 6 innings is 24 runs. How many runs must Dev score in the next innings to raise the average to 29?
  11. 11.Marks of 4 friends in a quiz: 44, 54, 46, 68. What is their average mark?
  12. 12.The average of 5 numbers is 46. When one more number is added, the average becomes 49. What number was added?
  13. 13.The average of 9 numbers is 44. When one more number is added, the average becomes 50. What number was added?
  14. 14.A shop sells an average of 70 kg of sugar a day for 2 days, and then 25 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  15. 15.The average weight of 10 children is 37 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  16. 16.The average weight of 8 children is 31 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.Marks of 6 friends in a quiz: 77, 68, 64, 58, 60, 87. What is their average mark?
  18. 18.Marks of 4 friends in a quiz: 56, 59, 70, 87. What is their average mark?
  19. 19.Arjun’s batting average after 12 innings is 42 runs. How many runs must Arjun score in the next innings to raise the average to 47?
  20. 20.Marks of 5 friends in a quiz: 36, 32, 34, 37, 71. What is their average mark?
  21. 21.A shop sells an average of 57 kg of sugar a day for 5 days, and then 68 kg a day for the next 6 days. What is the average sale per day for all 11 days (in kg)?
  22. 22.Marks of 5 friends in a quiz: 81, 68, 74, 72, 55. What is their average mark?
  23. 23.The average weight of 11 children is 45 kg. One child, who weighs 65 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.The average weight of 11 children is 33 kg. One child, who weighs 63 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.A shop sells an average of 45 kg of sugar a day for 6 days, and then 50 kg a day for the next 4 days. What is the average sale per day for all 10 days (in kg)?
  26. 26.Marks of 4 friends in a quiz: 70, 77, 78, 47. What is their average mark?
  27. 27.The average weight of 10 children is 41 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.The average weight of 6 children is 31 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
  29. 29.A shop sells an average of 68 kg of sugar a day for 3 days, and then 44 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
  30. 30.The average of 4 numbers is 35. When one more number is added, the average becomes 41. What number was added?
  31. 31.The average of 4 numbers is 15. When one more number is added, the average becomes 21. What number was added?
  32. 32.The average of 6 numbers is 20. When one more number is added, the average becomes 25. What number was added?
  33. 33.A shop sells an average of 24 kg of sugar a day for 3 days, and then 32 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  34. 34.Nisha’s batting average after 11 innings is 43 runs. How many runs must Nisha score in the next innings to raise the average to 44?
  35. 35.The average of 7 numbers is 16. When one more number is added, the average becomes 19. What number was added?
  36. 36.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)?
  37. 37.Marks of 4 friends in a quiz: 50, 52, 48, 18. What is their average mark?
  38. 38.A shop sells an average of 42 kg of sugar a day for 2 days, and then 72 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  39. 39.Marks of 5 friends in a quiz: 78, 87, 92, 104, 89. What is their average mark?
  40. 40.The average of 5 numbers is 16. When one more number is added, the average becomes 17. What number was added?

Answer key

  1. 37
  2. 79
  3. 77
  4. 75
  5. 36
  6. 31
  7. 52
  8. 42
  9. 70
  10. 59
  11. 53
  12. 64
  13. 104
  14. 43
  15. 36
  16. 28
  17. 69
  18. 68
  19. 107
  20. 42
  21. 63
  22. 70
  23. 43
  24. 30
  25. 47
  26. 68
  27. 39
  28. 30
  29. 53
  30. 65
  31. 45
  32. 55
  33. 28
  34. 55
  35. 40
  36. 34
  37. 42
  38. 62
  39. 90
  40. 22

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