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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 198 · 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.The average of 7 numbers is 45. When one more number is added, the average becomes 48. What number was added?
  2. 2.The average weight of 9 children is 43 kg. One child, who weighs 67 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.A shop sells an average of 69 kg of sugar a day for 2 days, and then 41 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
  4. 4.A shop sells an average of 57 kg of sugar a day for 6 days, and then 67 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  5. 5.The average weight of 11 children is 28 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.The average weight of 10 children is 39 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  7. 7.A shop sells an average of 63 kg of sugar a day for 6 days, and then 66 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  8. 8.Marks of 6 friends in a quiz: 92, 87, 99, 89, 87, 86. What is their average mark?
  9. 9.Isha’s batting average after 10 innings is 34 runs. How many runs must Isha score in the next innings to raise the average to 39?
  10. 10.Vivaan’s batting average after 5 innings is 20 runs. How many runs must Vivaan score in the next innings to raise the average to 23?
  11. 11.The average of 5 numbers is 21. When one more number is added, the average becomes 24. What number was added?
  12. 12.A shop sells an average of 28 kg of sugar a day for 3 days, and then 34 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  13. 13.The average of 5 numbers is 32. When one more number is added, the average becomes 38. What number was added?
  14. 14.The average of 8 numbers is 55. When one more number is added, the average becomes 56. What number was added?
  15. 15.Meera’s batting average after 7 innings is 34 runs. How many runs must Meera score in the next innings to raise the average to 39?
  16. 16.Kavya’s batting average after 13 innings is 33 runs. How many runs must Kavya score in the next innings to raise the average to 36?
  17. 17.A shop sells an average of 39 kg of sugar a day for 3 days, and then 27 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  18. 18.The average weight of 10 children is 33 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
  19. 19.A shop sells an average of 44 kg of sugar a day for 2 days, and then 68 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  20. 20.Isha’s batting average after 10 innings is 36 runs. How many runs must Isha score in the next innings to raise the average to 39?
  21. 21.The average of 7 numbers is 40. When one more number is added, the average becomes 43. What number was added?
  22. 22.The average weight of 10 children is 48 kg. One child, who weighs 75 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.The average weight of 6 children is 44 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.Aditya’s batting average after 9 innings is 42 runs. How many runs must Aditya score in the next innings to raise the average to 47?
  25. 25.Marks of 4 friends in a quiz: 70, 64, 85, 93. What is their average mark?
  26. 26.A shop sells an average of 58 kg of sugar a day for 4 days, and then 22 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  27. 27.Meera’s batting average after 11 innings is 44 runs. How many runs must Meera score in the next innings to raise the average to 47?
  28. 28.The average of 9 numbers is 51. When one more number is added, the average becomes 55. What number was added?
  29. 29.The average of 7 numbers is 37. When one more number is added, the average becomes 42. What number was added?
  30. 30.Marks of 4 friends in a quiz: 65, 55, 62, 62. What is their average mark?
  31. 31.Marks of 6 friends in a quiz: 14, 19, 35, 14, 39, 29. What is their average mark?
  32. 32.Marks of 5 friends in a quiz: 54, 40, 59, 48, 54. What is their average mark?
  33. 33.The average weight of 5 children is 28 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
  34. 34.Ananya’s batting average after 14 innings is 23 runs. How many runs must Ananya score in the next innings to raise the average to 27?
  35. 35.Marks of 6 friends in a quiz: 53, 69, 65, 71, 74, 52. What is their average mark?
  36. 36.Arjun’s batting average after 10 innings is 40 runs. How many runs must Arjun score in the next innings to raise the average to 43?
  37. 37.Manav’s batting average after 10 innings is 26 runs. How many runs must Manav score in the next innings to raise the average to 31?
  38. 38.Marks of 6 friends in a quiz: 83, 74, 85, 78, 83, 77. What is their average mark?
  39. 39.The average weight of 10 children is 43 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.Marks of 5 friends in a quiz: 72, 82, 63, 82, 71. What is their average mark?

Answer key

  1. 69
  2. 40
  3. 49
  4. 62
  5. 27
  6. 38
  7. 64
  8. 90
  9. 89
  10. 38
  11. 39
  12. 31
  13. 68
  14. 64
  15. 74
  16. 75
  17. 33
  18. 30
  19. 62
  20. 69
  21. 64
  22. 45
  23. 43
  24. 92
  25. 78
  26. 46
  27. 80
  28. 91
  29. 77
  30. 61
  31. 25
  32. 51
  33. 26
  34. 83
  35. 64
  36. 73
  37. 81
  38. 80
  39. 42
  40. 74

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