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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 176 · 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: 58, 58, 78, 98. What is their average mark?
  2. 2.A shop sells an average of 25 kg of sugar a day for 4 days, and then 73 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  3. 3.The average weight of 5 children is 36 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  4. 4.The average weight of 6 children is 31 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
  5. 5.The average weight of 11 children is 26 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.A shop sells an average of 22 kg of sugar a day for 6 days, and then 34 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  7. 7.The average weight of 9 children is 38 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  8. 8.The average weight of 8 children is 42 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.Marks of 6 friends in a quiz: 42, 30, 51, 33, 40, 38. What is their average mark?
  10. 10.Marks of 4 friends in a quiz: 34, 42, 50, 58. What is their average mark?
  11. 11.The average of 9 numbers is 15. When one more number is added, the average becomes 19. What number was added?
  12. 12.A shop sells an average of 63 kg of sugar a day for 4 days, and then 28 kg a day for the next 3 days. What is the average sale per day for all 7 days (in kg)?
  13. 13.Marks of 5 friends in a quiz: 78, 58, 56, 53, 90. What is their average mark?
  14. 14.The average weight of 6 children is 33 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
  15. 15.Marks of 4 friends in a quiz: 50, 74, 55, 81. What is their average mark?
  16. 16.Aditya’s batting average after 15 innings is 22 runs. How many runs must Aditya score in the next innings to raise the average to 26?
  17. 17.The average of 7 numbers is 56. When one more number is added, the average becomes 58. What number was added?
  18. 18.Marks of 4 friends in a quiz: 23, 45, 27, 45. What is their average mark?
  19. 19.Marks of 5 friends in a quiz: 96, 81, 80, 79, 99. What is their average mark?
  20. 20.A shop sells an average of 31 kg of sugar a day for 4 days, and then 57 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  21. 21.The average of 9 numbers is 21. When one more number is added, the average becomes 26. What number was added?
  22. 22.Nisha’s batting average after 10 innings is 50 runs. How many runs must Nisha score in the next innings to raise the average to 51?
  23. 23.Marks of 6 friends in a quiz: 52, 32, 37, 31, 31, 45. What is their average mark?
  24. 24.Kabir’s batting average after 11 innings is 49 runs. How many runs must Kabir score in the next innings to raise the average to 51?
  25. 25.Marks of 5 friends in a quiz: 95, 80, 95, 87, 43. What is their average mark?
  26. 26.Marks of 6 friends in a quiz: 41, 57, 57, 58, 52, 47. What is their average mark?
  27. 27.Marks of 6 friends in a quiz: 58, 54, 65, 63, 61, 5. What is their average mark?
  28. 28.Marks of 5 friends in a quiz: 50, 69, 64, 48, 84. What is their average mark?
  29. 29.A shop sells an average of 53 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)?
  30. 30.Marks of 4 friends in a quiz: 19, 14, 17, 58. What is their average mark?
  31. 31.Marks of 5 friends in a quiz: 71, 67, 79, 74, 64. What is their average mark?
  32. 32.The average of 9 numbers is 38. When one more number is added, the average becomes 43. What number was added?
  33. 33.The average weight of 6 children is 35 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.A shop sells an average of 71 kg of sugar a day for 3 days, and then 31 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  35. 35.Marks of 6 friends in a quiz: 90, 89, 78, 73, 87, 69. What is their average mark?
  36. 36.Marks of 4 friends in a quiz: 40, 26, 33, 21. What is their average mark?
  37. 37.Marks of 4 friends in a quiz: 28, 32, 35, 53. What is their average mark?
  38. 38.Marks of 6 friends in a quiz: 85, 87, 68, 83, 86, 47. What is their average mark?
  39. 39.The average weight of 10 children is 29 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.Marks of 5 friends in a quiz: 22, 47, 27, 39, 50. What is their average mark?

Answer key

  1. 73
  2. 41
  3. 35
  4. 29
  5. 25
  6. 28
  7. 36
  8. 41
  9. 39
  10. 46
  11. 55
  12. 48
  13. 67
  14. 32
  15. 65
  16. 86
  17. 72
  18. 35
  19. 87
  20. 44
  21. 71
  22. 61
  23. 38
  24. 73
  25. 80
  26. 52
  27. 51
  28. 63
  29. 39
  30. 27
  31. 71
  32. 88
  33. 32
  34. 51
  35. 81
  36. 30
  37. 37
  38. 76
  39. 27
  40. 37

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