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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 158 · 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 4 numbers is 25. When one more number is added, the average becomes 30. What number was added?
  2. 2.The average of 9 numbers is 42. When one more number is added, the average becomes 47. What number was added?
  3. 3.Isha’s batting average after 13 innings is 26 runs. How many runs must Isha score in the next innings to raise the average to 29?
  4. 4.Saanvi’s batting average after 6 innings is 27 runs. How many runs must Saanvi score in the next innings to raise the average to 32?
  5. 5.A shop sells an average of 66 kg of sugar a day for 2 days, and then 42 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  6. 6.The average weight of 11 children is 28 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  7. 7.Marks of 6 friends in a quiz: 29, 35, 33, 50, 32, 37. What is their average mark?
  8. 8.Marks of 6 friends in a quiz: 88, 85, 78, 85, 76, 74. What is their average mark?
  9. 9.The average of 6 numbers is 26. When one more number is added, the average becomes 31. What number was added?
  10. 10.Marks of 4 friends in a quiz: 26, 48, 25, 49. What is their average mark?
  11. 11.Marks of 5 friends in a quiz: 52, 62, 54, 57, 90. What is their average mark?
  12. 12.The average weight of 5 children is 31 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.The average of 7 numbers is 59. When one more number is added, the average becomes 62. What number was added?
  14. 14.Priya’s batting average after 15 innings is 50 runs. How many runs must Priya score in the next innings to raise the average to 51?
  15. 15.Ananya’s batting average after 12 innings is 31 runs. How many runs must Ananya score in the next innings to raise the average to 33?
  16. 16.The average of 4 numbers is 49. When one more number is added, the average becomes 50. What number was added?
  17. 17.Marks of 4 friends in a quiz: 48, 26, 35, 47. What is their average mark?
  18. 18.Marks of 6 friends in a quiz: 84, 98, 97, 96, 81, 42. What is their average mark?
  19. 19.A shop sells an average of 22 kg of sugar a day for 3 days, and then 26 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  20. 20.The average weight of 10 children is 48 kg. One child, who weighs 75 kg, leaves the group. What is the new average weight (in kg)?
  21. 21.The average weight of 9 children is 46 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  22. 22.Aarav’s batting average after 10 innings is 42 runs. How many runs must Aarav score in the next innings to raise the average to 44?
  23. 23.The average of 8 numbers is 51. When one more number is added, the average becomes 54. What number was added?
  24. 24.Marks of 6 friends in a quiz: 78, 82, 80, 60, 71, 73. What is their average mark?
  25. 25.The average weight of 10 children is 35 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.The average of 6 numbers is 60. When one more number is added, the average becomes 61. What number was added?
  27. 27.The average weight of 9 children is 42 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.The average weight of 11 children is 39 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  29. 29.The average weight of 10 children is 31 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  30. 30.Marks of 4 friends in a quiz: 73, 62, 71, 38. What is their average mark?
  31. 31.Marks of 5 friends in a quiz: 73, 70, 81, 95, 91. What is their average mark?
  32. 32.Marks of 6 friends in a quiz: 76, 90, 79, 69, 74, 86. What is their average mark?
  33. 33.The average weight of 6 children is 30 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.The average of 7 numbers is 60. When one more number is added, the average becomes 62. What number was added?
  35. 35.Karan’s batting average after 14 innings is 30 runs. How many runs must Karan score in the next innings to raise the average to 33?
  36. 36.A shop sells an average of 43 kg of sugar a day for 3 days, and then 21 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  37. 37.The average weight of 9 children is 44 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  38. 38.A shop sells an average of 47 kg of sugar a day for 3 days, and then 63 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
  39. 39.Nisha’s batting average after 10 innings is 44 runs. How many runs must Nisha score in the next innings to raise the average to 48?
  40. 40.Marks of 6 friends in a quiz: 21, 44, 28, 17, 31, 51. What is their average mark?

Answer key

  1. 50
  2. 92
  3. 68
  4. 62
  5. 50
  6. 25
  7. 36
  8. 81
  9. 61
  10. 37
  11. 63
  12. 30
  13. 83
  14. 66
  15. 57
  16. 54
  17. 39
  18. 83
  19. 24
  20. 45
  21. 45
  22. 64
  23. 78
  24. 74
  25. 33
  26. 67
  27. 41
  28. 38
  29. 30
  30. 61
  31. 82
  32. 79
  33. 28
  34. 76
  35. 75
  36. 32
  37. 43
  38. 57
  39. 88
  40. 32

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