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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 245 · 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 60. When one more number is added, the average becomes 65. What number was added?
  2. 2.Tara’s batting average after 7 innings is 46 runs. How many runs must Tara score in the next innings to raise the average to 50?
  3. 3.A shop sells an average of 36 kg of sugar a day for 6 days, and then 24 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  4. 4.Marks of 4 friends in a quiz: 59, 53, 53, 99. What is their average mark?
  5. 5.Marks of 4 friends in a quiz: 50, 52, 48, 46. What is their average mark?
  6. 6.Marks of 6 friends in a quiz: 47, 53, 52, 38, 45, 5. What is their average mark?
  7. 7.The average of 4 numbers is 31. When one more number is added, the average becomes 33. What number was added?
  8. 8.The average of 9 numbers is 49. When one more number is added, the average becomes 53. What number was added?
  9. 9.The average weight of 10 children is 28 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.The average weight of 8 children is 34 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
  11. 11.Marks of 4 friends in a quiz: 42, 37, 37, 92. What is their average mark?
  12. 12.Marks of 5 friends in a quiz: 85, 91, 73, 80, 71. What is their average mark?
  13. 13.A shop sells an average of 29 kg of sugar a day for 4 days, and then 53 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  14. 14.A shop sells an average of 36 kg of sugar a day for 6 days, and then 64 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  15. 15.Marks of 4 friends in a quiz: 45, 51, 64, 80. What is their average mark?
  16. 16.The average of 7 numbers is 20. When one more number is added, the average becomes 22. What number was added?
  17. 17.Marks of 4 friends in a quiz: 61, 58, 44, 73. What is their average mark?
  18. 18.The average weight of 10 children is 38 kg. One child, who weighs 56 kg, leaves the group. What is the new average weight (in kg)?
  19. 19.The average of 4 numbers is 49. When one more number is added, the average becomes 55. What number was added?
  20. 20.The average weight of 5 children is 46 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  21. 21.A shop sells an average of 50 kg of sugar a day for 4 days, and then 26 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  22. 22.Marks of 5 friends in a quiz: 93, 85, 63, 74, 75. What is their average mark?
  23. 23.The average of 8 numbers is 38. When one more number is added, the average becomes 42. What number was added?
  24. 24.A shop sells an average of 61 kg of sugar a day for 2 days, and then 63 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  25. 25.The average weight of 8 children is 44 kg. One child, who weighs 65 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.The average of 7 numbers is 23. When one more number is added, the average becomes 26. What number was added?
  27. 27.The average of 4 numbers is 48. When one more number is added, the average becomes 49. What number was added?
  28. 28.The average weight of 12 children is 29 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  29. 29.The average of 4 numbers is 19. When one more number is added, the average becomes 20. What number was added?
  30. 30.Pooja’s batting average after 6 innings is 42 runs. How many runs must Pooja score in the next innings to raise the average to 43?
  31. 31.Manav’s batting average after 13 innings is 35 runs. How many runs must Manav score in the next innings to raise the average to 40?
  32. 32.Ishaan’s batting average after 7 innings is 35 runs. How many runs must Ishaan score in the next innings to raise the average to 36?
  33. 33.The average weight of 11 children is 28 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.Pooja’s batting average after 9 innings is 32 runs. How many runs must Pooja score in the next innings to raise the average to 33?
  35. 35.Marks of 4 friends in a quiz: 73, 68, 86, 65. What is their average mark?
  36. 36.Rohan’s batting average after 12 innings is 21 runs. How many runs must Rohan score in the next innings to raise the average to 25?
  37. 37.Marks of 4 friends in a quiz: 48, 54, 50, 88. What is their average mark?
  38. 38.The average of 4 numbers is 30. When one more number is added, the average becomes 32. What number was added?
  39. 39.The average of 4 numbers is 43. When one more number is added, the average becomes 45. What number was added?
  40. 40.The average weight of 8 children is 27 kg. One child, who weighs 34 kg, leaves the group. What is the new average weight (in kg)?

Answer key

  1. 100
  2. 78
  3. 33
  4. 66
  5. 49
  6. 40
  7. 41
  8. 89
  9. 27
  10. 33
  11. 52
  12. 80
  13. 37
  14. 43
  15. 60
  16. 36
  17. 59
  18. 36
  19. 79
  20. 43
  21. 38
  22. 78
  23. 74
  24. 62
  25. 41
  26. 47
  27. 53
  28. 28
  29. 24
  30. 49
  31. 105
  32. 43
  33. 26
  34. 42
  35. 73
  36. 73
  37. 60
  38. 40
  39. 53
  40. 26

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