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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 41 · 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 5 friends in a quiz: 35, 50, 39, 40, 81. What is their average mark?
  2. 2.The average of 8 numbers is 19. When one more number is added, the average becomes 23. What number was added?
  3. 3.Marks of 4 friends in a quiz: 57, 57, 66, 84. What is their average mark?
  4. 4.A shop sells an average of 63 kg of sugar a day for 2 days, and then 21 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  5. 5.The average weight of 7 children is 27 kg. One child, who weighs 33 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.The average weight of 12 children is 31 kg. One child, who weighs 64 kg, leaves the group. What is the new average weight (in kg)?
  7. 7.Nisha’s batting average after 14 innings is 33 runs. How many runs must Nisha score in the next innings to raise the average to 36?
  8. 8.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)?
  9. 9.The average weight of 10 children is 26 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.The average of 5 numbers is 19. When one more number is added, the average becomes 22. What number was added?
  11. 11.The average of 8 numbers is 50. When one more number is added, the average becomes 53. What number was added?
  12. 12.A shop sells an average of 75 kg of sugar a day for 6 days, and then 39 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  13. 13.Marks of 5 friends in a quiz: 25, 28, 39, 30, 63. What is their average mark?
  14. 14.A shop sells an average of 21 kg of sugar a day for 4 days, and then 42 kg a day for the next 3 days. What is the average sale per day for all 7 days (in kg)?
  15. 15.A shop sells an average of 50 kg of sugar a day for 2 days, and then 80 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 6 children is 27 kg. One child, who weighs 32 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.A shop sells an average of 53 kg of sugar a day for 4 days, and then 45 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  18. 18.The average weight of 6 children is 35 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  19. 19.The average of 4 numbers is 59. When one more number is added, the average becomes 61. What number was added?
  20. 20.Kavya’s batting average after 5 innings is 29 runs. How many runs must Kavya score in the next innings to raise the average to 33?
  21. 21.Marks of 6 friends in a quiz: 99, 100, 80, 78, 91, 92. What is their average mark?
  22. 22.Manav’s batting average after 12 innings is 33 runs. How many runs must Manav score in the next innings to raise the average to 34?
  23. 23.Marks of 5 friends in a quiz: 55, 33, 39, 50, 38. What is their average mark?
  24. 24.The average weight of 9 children is 32 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.A shop sells an average of 21 kg of sugar a day for 2 days, and then 37 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  26. 26.The average of 5 numbers is 27. When one more number is added, the average becomes 28. What number was added?
  27. 27.Marks of 4 friends in a quiz: 88, 73, 59, 76. What is their average mark?
  28. 28.The average of 8 numbers is 25. When one more number is added, the average becomes 31. What number was added?
  29. 29.A shop sells an average of 30 kg of sugar a day for 3 days, and then 48 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  30. 30.The average of 5 numbers is 42. When one more number is added, the average becomes 47. What number was added?
  31. 31.The average of 4 numbers is 33. When one more number is added, the average becomes 38. What number was added?
  32. 32.Marks of 6 friends in a quiz: 49, 66, 61, 43, 56, 31. What is their average mark?
  33. 33.Diya’s batting average after 8 innings is 37 runs. How many runs must Diya score in the next innings to raise the average to 40?
  34. 34.The average weight of 5 children is 47 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.The average of 6 numbers is 16. When one more number is added, the average becomes 21. What number was added?
  36. 36.The average of 7 numbers is 18. When one more number is added, the average becomes 22. What number was added?
  37. 37.A shop sells an average of 29 kg of sugar a day for 2 days, and then 49 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  38. 38.The average of 5 numbers is 36. When one more number is added, the average becomes 39. What number was added?
  39. 39.A shop sells an average of 64 kg of sugar a day for 5 days, and then 30 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  40. 40.Marks of 5 friends in a quiz: 47, 22, 48, 37, 16. What is their average mark?

Answer key

  1. 49
  2. 55
  3. 66
  4. 33
  5. 26
  6. 28
  7. 78
  8. 25
  9. 25
  10. 37
  11. 77
  12. 57
  13. 37
  14. 30
  15. 65
  16. 26
  17. 49
  18. 33
  19. 69
  20. 53
  21. 90
  22. 46
  23. 43
  24. 30
  25. 33
  26. 33
  27. 74
  28. 79
  29. 39
  30. 72
  31. 58
  32. 51
  33. 64
  34. 44
  35. 51
  36. 50
  37. 41
  38. 54
  39. 47
  40. 34

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