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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 80 · 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 37. When one more number is added, the average becomes 41. What number was added?
  2. 2.The average weight of 6 children is 35 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.A shop sells an average of 67 kg of sugar a day for 3 days, and then 34 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  4. 4.Aditya’s batting average after 6 innings is 29 runs. How many runs must Aditya score in the next innings to raise the average to 30?
  5. 5.The average of 7 numbers is 60. When one more number is added, the average becomes 61. What number was added?
  6. 6.A shop sells an average of 44 kg of sugar a day for 2 days, and then 30 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  7. 7.The average weight of 7 children is 36 kg. One child, who weighs 42 kg, leaves the group. What is the new average weight (in kg)?
  8. 8.The average weight of 12 children is 42 kg. One child, who weighs 75 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.Marks of 5 friends in a quiz: 29, 20, 9, 32, 10. What is their average mark?
  10. 10.The average of 9 numbers is 21. When one more number is added, the average becomes 23. What number was added?
  11. 11.A shop sells an average of 28 kg of sugar a day for 5 days, and then 46 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  12. 12.A shop sells an average of 28 kg of sugar a day for 6 days, and then 72 kg a day for the next 5 days. What is the average sale per day for all 11 days (in kg)?
  13. 13.A shop sells an average of 51 kg of sugar a day for 5 days, and then 24 kg a day for the next 4 days. What is the average sale per day for all 9 days (in kg)?
  14. 14.The average of 9 numbers is 55. When one more number is added, the average becomes 60. What number was added?
  15. 15.Aarav’s batting average after 6 innings is 44 runs. How many runs must Aarav score in the next innings to raise the average to 45?
  16. 16.The average of 9 numbers is 38. When one more number is added, the average becomes 42. What number was added?
  17. 17.The average of 9 numbers is 56. When one more number is added, the average becomes 57. What number was added?
  18. 18.Marks of 6 friends in a quiz: 33, 9, 34, 11, 36, 21. What is their average mark?
  19. 19.The average weight of 11 children is 32 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.The average of 4 numbers is 58. When one more number is added, the average becomes 62. What number was added?
  21. 21.Marks of 4 friends in a quiz: 79, 65, 78, 98. What is their average mark?
  22. 22.A shop sells an average of 39 kg of sugar a day for 5 days, and then 37 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  23. 23.The average weight of 5 children is 28 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.Marks of 5 friends in a quiz: 14, 12, 19, 28, 32. What is their average mark?
  25. 25.Marks of 6 friends in a quiz: 75, 99, 71, 86, 92, 93. What is their average mark?
  26. 26.The average of 4 numbers is 52. When one more number is added, the average becomes 58. What number was added?
  27. 27.Marks of 5 friends in a quiz: 21, 14, 20, 25, 50. What is their average mark?
  28. 28.Diya’s batting average after 11 innings is 41 runs. How many runs must Diya score in the next innings to raise the average to 44?
  29. 29.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)?
  30. 30.The average weight of 8 children is 41 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  31. 31.Marks of 4 friends in a quiz: 88, 68, 89, 51. What is their average mark?
  32. 32.The average weight of 9 children is 39 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.The average of 7 numbers is 21. When one more number is added, the average becomes 27. What number was added?
  34. 34.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)?
  35. 35.The average of 7 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: 67, 80, 66, 63. What is their average mark?
  37. 37.Marks of 5 friends in a quiz: 11, 13, 37, 20, 34. What is their average mark?
  38. 38.Isha’s batting average after 6 innings is 28 runs. How many runs must Isha score in the next innings to raise the average to 32?
  39. 39.The average of 4 numbers is 38. When one more number is added, the average becomes 44. What number was added?
  40. 40.The average of 4 numbers is 56. When one more number is added, the average becomes 62. What number was added?

Answer key

  1. 69
  2. 33
  3. 45
  4. 36
  5. 68
  6. 37
  7. 35
  8. 39
  9. 20
  10. 41
  11. 37
  12. 48
  13. 39
  14. 105
  15. 51
  16. 78
  17. 66
  18. 24
  19. 30
  20. 78
  21. 80
  22. 38
  23. 26
  24. 21
  25. 86
  26. 82
  27. 26
  28. 77
  29. 36
  30. 40
  31. 74
  32. 38
  33. 69
  34. 29
  35. 52
  36. 69
  37. 23
  38. 56
  39. 68
  40. 86

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