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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 135 · 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: 93, 85, 95, 88, 44. What is their average mark?
  2. 2.Marks of 5 friends in a quiz: 41, 41, 46, 46, 6. What is their average mark?
  3. 3.The average of 5 numbers is 15. When one more number is added, the average becomes 17. What number was added?
  4. 4.The average of 5 numbers is 18. When one more number is added, the average becomes 19. What number was added?
  5. 5.The average weight of 7 children is 42 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.The average of 6 numbers is 18. When one more number is added, the average becomes 20. What number was added?
  7. 7.The average of 4 numbers is 36. When one more number is added, the average becomes 38. What number was added?
  8. 8.Aditya’s batting average after 11 innings is 34 runs. How many runs must Aditya score in the next innings to raise the average to 36?
  9. 9.The average weight of 5 children is 26 kg. One child, who weighs 30 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.The average weight of 6 children is 45 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  11. 11.Marks of 5 friends in a quiz: 40, 51, 68, 58, 48. What is their average mark?
  12. 12.Saanvi’s batting average after 15 innings is 38 runs. How many runs must Saanvi score in the next innings to raise the average to 40?
  13. 13.Marks of 6 friends in a quiz: 40, 31, 48, 44, 21, 32. What is their average mark?
  14. 14.A shop sells an average of 51 kg of sugar a day for 2 days, and then 79 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  15. 15.Marks of 4 friends in a quiz: 44, 45, 60, 67. What is their average mark?
  16. 16.The average weight of 6 children is 29 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.The average weight of 12 children is 41 kg. One child, who weighs 74 kg, leaves the group. What is the new average weight (in kg)?
  18. 18.Marks of 4 friends in a quiz: 83, 57, 80, 64. What is their average mark?
  19. 19.Priya’s batting average after 15 innings is 28 runs. How many runs must Priya score in the next innings to raise the average to 30?
  20. 20.A shop sells an average of 50 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 55 kg of sugar a day for 2 days, and then 75 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  22. 22.A shop sells an average of 71 kg of sugar a day for 4 days, and then 50 kg a day for the next 3 days. What is the average sale per day for all 7 days (in kg)?
  23. 23.The average weight of 7 children is 36 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.The average of 8 numbers is 31. When one more number is added, the average becomes 34. What number was added?
  25. 25.The average of 5 numbers is 24. When one more number is added, the average becomes 26. What number was added?
  26. 26.Marks of 5 friends in a quiz: 32, 17, 22, 27, 47. What is their average mark?
  27. 27.A shop sells an average of 29 kg of sugar a day for 6 days, and then 56 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  28. 28.Marks of 4 friends in a quiz: 44, 61, 47, 72. What is their average mark?
  29. 29.Marks of 6 friends in a quiz: 29, 17, 31, 30, 7, 18. What is their average mark?
  30. 30.Marks of 4 friends in a quiz: 65, 58, 72, 61. What is their average mark?
  31. 31.Marks of 4 friends in a quiz: 92, 96, 95, 57. What is their average mark?
  32. 32.A shop sells an average of 40 kg of sugar a day for 4 days, and then 78 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  33. 33.The average weight of 8 children is 35 kg. One child, who weighs 56 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.The average weight of 10 children is 30 kg. One child, who weighs 57 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.The average weight of 10 children is 37 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  36. 36.Marks of 4 friends in a quiz: 78, 57, 70, 79. What is their average mark?
  37. 37.Nisha’s batting average after 12 innings is 23 runs. How many runs must Nisha score in the next innings to raise the average to 25?
  38. 38.Marks of 6 friends in a quiz: 62, 63, 51, 48, 60, 88. What is their average mark?
  39. 39.The average of 9 numbers is 41. When one more number is added, the average becomes 47. What number was added?
  40. 40.The average weight of 8 children is 32 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?

Answer key

  1. 81
  2. 36
  3. 27
  4. 24
  5. 40
  6. 32
  7. 46
  8. 58
  9. 25
  10. 43
  11. 53
  12. 70
  13. 36
  14. 71
  15. 54
  16. 27
  17. 38
  18. 71
  19. 60
  20. 32
  21. 70
  22. 62
  23. 33
  24. 58
  25. 36
  26. 29
  27. 38
  28. 56
  29. 22
  30. 64
  31. 85
  32. 59
  33. 32
  34. 27
  35. 36
  36. 71
  37. 49
  38. 62
  39. 101
  40. 30

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