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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 536 · 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 57. When one more number is added, the average becomes 58. What number was added?
  2. 2.The average of 8 numbers is 32. When one more number is added, the average becomes 35. What number was added?
  3. 3.Marks of 4 friends in a quiz: 34, 46, 27, 25. What is their average mark?
  4. 4.The average weight of 12 children is 37 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  5. 5.Marks of 5 friends in a quiz: 61, 66, 74, 61, 48. What is their average mark?
  6. 6.Diya’s batting average after 10 innings is 46 runs. How many runs must Diya score in the next innings to raise the average to 50?
  7. 7.Marks of 4 friends in a quiz: 45, 45, 24, 38. What is their average mark?
  8. 8.Marks of 4 friends in a quiz: 23, 41, 42, 22. What is their average mark?
  9. 9.The average weight of 8 children is 28 kg. One child, who weighs 42 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.A shop sells an average of 53 kg of sugar a day for 4 days, and then 43 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  11. 11.Marks of 4 friends in a quiz: 81, 65, 66, 92. What is their average mark?
  12. 12.The average of 4 numbers is 48. When one more number is added, the average becomes 49. What number was added?
  13. 13.The average of 5 numbers is 16. When one more number is added, the average becomes 17. What number was added?
  14. 14.The average of 4 numbers is 41. When one more number is added, the average becomes 46. What number was added?
  15. 15.A shop sells an average of 49 kg of sugar a day for 2 days, and then 25 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  16. 16.The average weight of 9 children is 28 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.Marks of 5 friends in a quiz: 60, 79, 55, 79, 67. What is their average mark?
  18. 18.Marks of 6 friends in a quiz: 44, 41, 34, 57, 39, 49. What is their average mark?
  19. 19.A shop sells an average of 27 kg of sugar a day for 6 days, and then 75 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  20. 20.The average of 5 numbers is 45. When one more number is added, the average becomes 50. What number was added?
  21. 21.Marks of 6 friends in a quiz: 39, 58, 29, 47, 47, 38. What is their average mark?
  22. 22.Kavya’s batting average after 5 innings is 43 runs. How many runs must Kavya score in the next innings to raise the average to 44?
  23. 23.Marks of 5 friends in a quiz: 55, 70, 72, 79, 74. What is their average mark?
  24. 24.A shop sells an average of 37 kg of sugar a day for 3 days, and then 79 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  25. 25.A shop sells an average of 50 kg of sugar a day for 6 days, and then 34 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
  26. 26.Priya’s batting average after 12 innings is 34 runs. How many runs must Priya score in the next innings to raise the average to 37?
  27. 27.Arjun’s batting average after 13 innings is 22 runs. How many runs must Arjun score in the next innings to raise the average to 23?
  28. 28.Kabir’s batting average after 7 innings is 40 runs. How many runs must Kabir score in the next innings to raise the average to 41?
  29. 29.The average of 6 numbers is 58. When one more number is added, the average becomes 59. What number was added?
  30. 30.The average weight of 8 children is 36 kg. One child, who weighs 57 kg, leaves the group. What is the new average weight (in kg)?
  31. 31.Arjun’s batting average after 14 innings is 24 runs. How many runs must Arjun score in the next innings to raise the average to 29?
  32. 32.Marks of 4 friends in a quiz: 32, 36, 23, 33. What is their average mark?
  33. 33.The average weight of 8 children is 38 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.Marks of 4 friends in a quiz: 89, 67, 78, 70. What is their average mark?
  35. 35.Diya’s batting average after 8 innings is 29 runs. How many runs must Diya score in the next innings to raise the average to 32?
  36. 36.Marks of 6 friends in a quiz: 35, 32, 54, 37, 40, 78. What is their average mark?
  37. 37.Marks of 4 friends in a quiz: 34, 20, 22, 44. What is their average mark?
  38. 38.The average of 7 numbers is 57. When one more number is added, the average becomes 60. What number was added?
  39. 39.Marks of 6 friends in a quiz: 60, 73, 68, 60, 84, 69. What is their average mark?
  40. 40.The average of 6 numbers is 37. When one more number is added, the average becomes 38. What number was added?

Answer key

  1. 65
  2. 59
  3. 33
  4. 35
  5. 62
  6. 90
  7. 38
  8. 32
  9. 26
  10. 48
  11. 76
  12. 53
  13. 22
  14. 66
  15. 37
  16. 25
  17. 68
  18. 44
  19. 43
  20. 75
  21. 43
  22. 49
  23. 70
  24. 58
  25. 46
  26. 73
  27. 36
  28. 48
  29. 65
  30. 33
  31. 99
  32. 31
  33. 35
  34. 76
  35. 56
  36. 46
  37. 30
  38. 81
  39. 69
  40. 44

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