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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 387 · 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 4 friends in a quiz: 67, 69, 58, 50. What is their average mark?
  2. 2.A shop sells an average of 67 kg of sugar a day for 4 days, and then 21 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  3. 3.Marks of 6 friends in a quiz: 67, 53, 74, 60, 69, 67. What is their average mark?
  4. 4.The average of 8 numbers is 24. When one more number is added, the average becomes 28. What number was added?
  5. 5.The average of 9 numbers is 33. When one more number is added, the average becomes 37. What number was added?
  6. 6.Marks of 6 friends in a quiz: 44, 48, 41, 63, 44, 84. What is their average mark?
  7. 7.Marks of 6 friends in a quiz: 40, 31, 42, 29, 26, 60. What is their average mark?
  8. 8.Marks of 6 friends in a quiz: 35, 51, 55, 40, 33, 32. What is their average mark?
  9. 9.A shop sells an average of 40 kg of sugar a day for 4 days, and then 75 kg a day for the next 3 days. What is the average sale per day for all 7 days (in kg)?
  10. 10.The average weight of 7 children is 29 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  11. 11.Marks of 4 friends in a quiz: 33, 43, 34, 18. What is their average mark?
  12. 12.Zoya’s batting average after 10 innings is 41 runs. How many runs must Zoya score in the next innings to raise the average to 46?
  13. 13.The average of 5 numbers is 43. When one more number is added, the average becomes 45. What number was added?
  14. 14.The average weight of 9 children is 43 kg. One child, who weighs 67 kg, leaves the group. What is the new average weight (in kg)?
  15. 15.Marks of 5 friends in a quiz: 68, 68, 75, 63, 91. What is their average mark?
  16. 16.A shop sells an average of 26 kg of sugar a day for 5 days, and then 80 kg a day for the next 4 days. What is the average sale per day for all 9 days (in kg)?
  17. 17.Kavya’s batting average after 5 innings is 35 runs. How many runs must Kavya score in the next innings to raise the average to 40?
  18. 18.The average of 4 numbers is 59. When one more number is added, the average becomes 65. What number was added?
  19. 19.Marks of 6 friends in a quiz: 17, 19, 21, 26, 23, 80. What is their average mark?
  20. 20.A shop sells an average of 30 kg of sugar a day for 4 days, and then 20 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  21. 21.A shop sells an average of 28 kg of sugar a day for 2 days, and then 58 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  22. 22.The average weight of 9 children is 43 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.Ishaan’s batting average after 12 innings is 28 runs. How many runs must Ishaan score in the next innings to raise the average to 33?
  24. 24.The average weight of 11 children is 43 kg. One child, who weighs 73 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.Marks of 5 friends in a quiz: 35, 56, 36, 42, 66. What is their average mark?
  26. 26.The average weight of 7 children is 46 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.Marks of 6 friends in a quiz: 54, 35, 36, 42, 36, 79. What is their average mark?
  28. 28.The average weight of 7 children is 37 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  29. 29.The average of 4 numbers is 45. When one more number is added, the average becomes 46. What number was added?
  30. 30.A shop sells an average of 33 kg of sugar a day for 3 days, and then 26 kg a day for the next 4 days. What is the average sale per day for all 7 days (in kg)?
  31. 31.A shop sells an average of 31 kg of sugar a day for 4 days, and then 67 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  32. 32.The average of 5 numbers is 28. When one more number is added, the average becomes 29. What number was added?
  33. 33.The average weight of 6 children is 43 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.The average of 6 numbers is 45. When one more number is added, the average becomes 47. What number was added?
  35. 35.Marks of 6 friends in a quiz: 99, 102, 96, 97, 87, 47. What is their average mark?
  36. 36.Marks of 4 friends in a quiz: 75, 67, 64, 74. What is their average mark?
  37. 37.Marks of 4 friends in a quiz: 42, 62, 51, 69. What is their average mark?
  38. 38.The average of 5 numbers is 23. When one more number is added, the average becomes 24. What number was added?
  39. 39.A shop sells an average of 32 kg of sugar a day for 3 days, and then 47 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  40. 40.Marks of 4 friends in a quiz: 61, 65, 66, 92. What is their average mark?

Answer key

  1. 61
  2. 44
  3. 65
  4. 60
  5. 73
  6. 54
  7. 38
  8. 41
  9. 55
  10. 26
  11. 32
  12. 96
  13. 55
  14. 40
  15. 73
  16. 50
  17. 65
  18. 89
  19. 31
  20. 24
  21. 46
  22. 41
  23. 93
  24. 40
  25. 47
  26. 45
  27. 47
  28. 35
  29. 50
  30. 29
  31. 43
  32. 34
  33. 42
  34. 59
  35. 88
  36. 70
  37. 56
  38. 29
  39. 42
  40. 71

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