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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 170 · 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.A shop sells an average of 42 kg of sugar a day for 6 days, and then 22 kg a day for the next 4 days. What is the average sale per day for all 10 days (in kg)?
  2. 2.A shop sells an average of 43 kg of sugar a day for 6 days, and then 65 kg a day for the next 5 days. What is the average sale per day for all 11 days (in kg)?
  3. 3.The average weight of 12 children is 34 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  4. 4.The average of 6 numbers is 29. When one more number is added, the average becomes 33. What number was added?
  5. 5.The average of 4 numbers is 50. When one more number is added, the average becomes 53. What number was added?
  6. 6.Marks of 6 friends in a quiz: 39, 49, 24, 20, 47, 25. What is their average mark?
  7. 7.A shop sells an average of 29 kg of sugar a day for 3 days, and then 61 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
  8. 8.The average weight of 9 children is 46 kg. One child, who weighs 70 kg, leaves the group. What is the new average weight (in kg)?
  9. 9.The average weight of 8 children is 30 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.Marks of 6 friends in a quiz: 93, 77, 84, 90, 86, 92. What is their average mark?
  11. 11.Vivaan’s batting average after 10 innings is 38 runs. How many runs must Vivaan score in the next innings to raise the average to 43?
  12. 12.A shop sells an average of 80 kg of sugar a day for 2 days, and then 38 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  13. 13.A shop sells an average of 39 kg of sugar a day for 5 days, and then 25 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  14. 14.The average of 4 numbers is 20. When one more number is added, the average becomes 25. What number was added?
  15. 15.Marks of 4 friends in a quiz: 82, 75, 75, 76. What is their average mark?
  16. 16.A shop sells an average of 69 kg of sugar a day for 3 days, and then 71 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  17. 17.Aarav’s batting average after 14 innings is 41 runs. How many runs must Aarav score in the next innings to raise the average to 44?
  18. 18.The average weight of 9 children is 48 kg. One child, who weighs 72 kg, leaves the group. What is the new average weight (in kg)?
  19. 19.The average of 8 numbers is 23. When one more number is added, the average becomes 27. What number was added?
  20. 20.Marks of 5 friends in a quiz: 32, 46, 61, 44, 52. What is their average mark?
  21. 21.A shop sells an average of 79 kg of sugar a day for 4 days, and then 69 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  22. 22.Aarav’s batting average after 6 innings is 23 runs. How many runs must Aarav score in the next innings to raise the average to 27?
  23. 23.A shop sells an average of 56 kg of sugar a day for 4 days, and then 26 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  24. 24.The average weight of 9 children is 40 kg. One child, who weighs 64 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.A shop sells an average of 64 kg of sugar a day for 2 days, and then 66 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  26. 26.The average of 8 numbers is 18. When one more number is added, the average becomes 23. What number was added?
  27. 27.Nisha’s batting average after 8 innings is 42 runs. How many runs must Nisha score in the next innings to raise the average to 43?
  28. 28.The average of 9 numbers is 45. When one more number is added, the average becomes 51. What number was added?
  29. 29.Marks of 5 friends in a quiz: 41, 65, 45, 45, 79. What is their average mark?
  30. 30.Marks of 4 friends in a quiz: 28, 18, 28, 10. What is their average mark?
  31. 31.Diya’s batting average after 10 innings is 31 runs. How many runs must Diya score in the next innings to raise the average to 34?
  32. 32.Marks of 5 friends in a quiz: 35, 41, 26, 27, 71. What is their average mark?
  33. 33.Marks of 5 friends in a quiz: 31, 26, 26, 9, 8. What is their average mark?
  34. 34.The average weight of 10 children is 37 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.The average weight of 6 children is 45 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  36. 36.A shop sells an average of 48 kg of sugar a day for 3 days, and then 38 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  37. 37.Marks of 6 friends in a quiz: 91, 99, 86, 90, 79, 71. What is their average mark?
  38. 38.Marks of 6 friends in a quiz: 43, 38, 37, 29, 23, 10. What is their average mark?
  39. 39.A shop sells an average of 31 kg of sugar a day for 3 days, and then 47 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
  40. 40.A shop sells an average of 53 kg of sugar a day for 6 days, and then 51 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?

Answer key

  1. 34
  2. 53
  3. 33
  4. 57
  5. 65
  6. 34
  7. 49
  8. 43
  9. 29
  10. 87
  11. 93
  12. 52
  13. 32
  14. 45
  15. 77
  16. 70
  17. 86
  18. 45
  19. 59
  20. 47
  21. 73
  22. 51
  23. 46
  24. 37
  25. 65
  26. 63
  27. 51
  28. 105
  29. 55
  30. 21
  31. 64
  32. 40
  33. 20
  34. 35
  35. 44
  36. 43
  37. 86
  38. 30
  39. 41
  40. 52

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