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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 10 · 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 20. When one more number is added, the average becomes 23. What number was added?
  2. 2.Marks of 4 friends in a quiz: 53, 40, 29, 34. What is their average mark?
  3. 3.Marks of 5 friends in a quiz: 15, 14, 43, 22, 51. What is their average mark?
  4. 4.A shop sells an average of 34 kg of sugar a day for 4 days, and then 52 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  5. 5.Marks of 5 friends in a quiz: 78, 95, 96, 91, 45. What is their average mark?
  6. 6.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)?
  7. 7.A shop sells an average of 63 kg of sugar a day for 2 days, and then 71 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  8. 8.Marks of 4 friends in a quiz: 92, 78, 76, 94. What is their average mark?
  9. 9.The average of 8 numbers is 37. When one more number is added, the average becomes 43. What number was added?
  10. 10.Marks of 5 friends in a quiz: 42, 42, 48, 41, 92. What is their average mark?
  11. 11.A shop sells an average of 70 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)?
  12. 12.The average of 6 numbers is 24. When one more number is added, the average becomes 25. What number was added?
  13. 13.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)?
  14. 14.Marks of 5 friends in a quiz: 66, 43, 68, 58, 35. What is their average mark?
  15. 15.Marks of 5 friends in a quiz: 35, 27, 51, 29, 38. What is their average mark?
  16. 16.Marks of 6 friends in a quiz: 35, 47, 42, 46, 53, 41. What is their average mark?
  17. 17.Marks of 5 friends in a quiz: 93, 77, 85, 85, 55. What is their average mark?
  18. 18.Marks of 6 friends in a quiz: 13, 31, 39, 19, 11, 31. What is their average mark?
  19. 19.The average weight of 6 children is 36 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.Marks of 6 friends in a quiz: 41, 31, 28, 22, 30, 22. What is their average mark?
  21. 21.The average weight of 11 children is 32 kg. One child, who weighs 62 kg, leaves the group. What is the new average weight (in kg)?
  22. 22.A shop sells an average of 44 kg of sugar a day for 3 days, and then 36 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  23. 23.Marks of 4 friends in a quiz: 68, 45, 53, 70. What is their average mark?
  24. 24.The average weight of 6 children is 40 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.Marks of 5 friends in a quiz: 68, 69, 73, 56, 84. What is their average mark?
  26. 26.Marks of 6 friends in a quiz: 84, 79, 68, 75, 54, 54. What is their average mark?
  27. 27.A shop sells an average of 69 kg of sugar a day for 2 days, and then 75 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  28. 28.Diya’s batting average after 15 innings is 36 runs. How many runs must Diya score in the next innings to raise the average to 38?
  29. 29.Aarav’s batting average after 8 innings is 48 runs. How many runs must Aarav score in the next innings to raise the average to 52?
  30. 30.The average of 5 numbers is 59. When one more number is added, the average becomes 63. What number was added?
  31. 31.Diya’s batting average after 8 innings is 24 runs. How many runs must Diya score in the next innings to raise the average to 27?
  32. 32.A shop sells an average of 24 kg of sugar a day for 3 days, and then 75 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  33. 33.The average weight of 9 children is 32 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.Marks of 4 friends in a quiz: 69, 64, 83, 88. What is their average mark?
  35. 35.The average of 7 numbers is 17. When one more number is added, the average becomes 18. What number was added?
  36. 36.A shop sells an average of 59 kg of sugar a day for 2 days, and then 53 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  37. 37.Ananya’s batting average after 8 innings is 22 runs. How many runs must Ananya score in the next innings to raise the average to 26?
  38. 38.Marks of 5 friends in a quiz: 16, 42, 14, 41, 32. What is their average mark?
  39. 39.The average weight of 9 children is 27 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.The average weight of 8 children is 43 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?

Answer key

  1. 35
  2. 39
  3. 29
  4. 40
  5. 81
  6. 33
  7. 67
  8. 85
  9. 91
  10. 53
  11. 40
  12. 31
  13. 26
  14. 54
  15. 36
  16. 44
  17. 79
  18. 24
  19. 35
  20. 29
  21. 29
  22. 40
  23. 59
  24. 39
  25. 70
  26. 69
  27. 72
  28. 68
  29. 84
  30. 83
  31. 51
  32. 58
  33. 31
  34. 76
  35. 25
  36. 55
  37. 58
  38. 29
  39. 26
  40. 42

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