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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 715 · 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 61 kg of sugar a day for 3 days, and then 63 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  2. 2.A shop sells an average of 20 kg of sugar a day for 4 days, and then 80 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  3. 3.The average weight of 5 children is 29 kg. One child, who weighs 37 kg, leaves the group. What is the new average weight (in kg)?
  4. 4.The average of 5 numbers is 31. When one more number is added, the average becomes 34. What number was added?
  5. 5.The average weight of 10 children is 39 kg. One child, who weighs 57 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.The average weight of 8 children is 42 kg. One child, who weighs 56 kg, leaves the group. What is the new average weight (in kg)?
  7. 7.A shop sells an average of 60 kg of sugar a day for 4 days, and then 65 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  8. 8.The average of 8 numbers is 32. When one more number is added, the average becomes 33. What number was added?
  9. 9.The average weight of 5 children is 29 kg. One child, who weighs 33 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.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)?
  11. 11.The average weight of 9 children is 28 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.A shop sells an average of 30 kg of sugar a day for 2 days, and then 60 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  13. 13.Marks of 6 friends in a quiz: 38, 28, 34, 41, 37, 80. What is their average mark?
  14. 14.Marks of 4 friends in a quiz: 65, 51, 52, 88. What is their average mark?
  15. 15.The average of 8 numbers is 49. When one more number is added, the average becomes 50. What number was added?
  16. 16.The average weight of 9 children is 29 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  17. 17.The average weight of 10 children is 40 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  18. 18.The average weight of 9 children is 43 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  19. 19.The average weight of 6 children is 37 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.Arjun’s batting average after 12 innings is 43 runs. How many runs must Arjun score in the next innings to raise the average to 46?
  21. 21.The average of 7 numbers is 50. When one more number is added, the average becomes 51. What number was added?
  22. 22.The average weight of 5 children is 45 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.Marks of 5 friends in a quiz: 60, 60, 63, 81, 96. What is their average mark?
  24. 24.A shop sells an average of 53 kg of sugar a day for 2 days, and then 29 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  25. 25.A shop sells an average of 75 kg of sugar a day for 2 days, and then 23 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  26. 26.Isha’s batting average after 8 innings is 42 runs. How many runs must Isha score in the next innings to raise the average to 46?
  27. 27.Marks of 4 friends in a quiz: 75, 65, 72, 56. What is their average mark?
  28. 28.The average of 5 numbers is 48. When one more number is added, the average becomes 54. What number was added?
  29. 29.Marks of 6 friends in a quiz: 48, 50, 44, 63, 47, 78. What is their average mark?
  30. 30.The average weight of 5 children is 35 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  31. 31.Farhan’s batting average after 14 innings is 35 runs. How many runs must Farhan score in the next innings to raise the average to 39?
  32. 32.Marks of 4 friends in a quiz: 91, 77, 99, 89. What is their average mark?
  33. 33.Marks of 4 friends in a quiz: 87, 75, 104, 90. What is their average mark?
  34. 34.A shop sells an average of 80 kg of sugar a day for 6 days, and then 38 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  35. 35.The average of 8 numbers is 43. When one more number is added, the average becomes 46. What number was added?
  36. 36.The average of 9 numbers is 18. When one more number is added, the average becomes 20. What number was added?
  37. 37.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)?
  38. 38.A shop sells an average of 75 kg of sugar a day for 2 days, and then 70 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
  39. 39.Nisha’s batting average after 12 innings is 28 runs. How many runs must Nisha score in the next innings to raise the average to 30?
  40. 40.Nisha’s batting average after 15 innings is 20 runs. How many runs must Nisha score in the next innings to raise the average to 25?

Answer key

  1. 62
  2. 56
  3. 27
  4. 49
  5. 37
  6. 40
  7. 63
  8. 41
  9. 28
  10. 35
  11. 27
  12. 45
  13. 43
  14. 64
  15. 58
  16. 27
  17. 39
  18. 41
  19. 35
  20. 82
  21. 58
  22. 44
  23. 72
  24. 35
  25. 36
  26. 78
  27. 67
  28. 84
  29. 55
  30. 33
  31. 95
  32. 89
  33. 89
  34. 66
  35. 70
  36. 38
  37. 30
  38. 72
  39. 54
  40. 100

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