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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 127 · 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 4 friends in a quiz: 27, 23, 11, 23. What is their average mark?
  2. 2.The average weight of 11 children is 32 kg. One child, who weighs 62 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.The average of 7 numbers is 29. When one more number is added, the average becomes 31. What number was added?
  4. 4.The average weight of 9 children is 30 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  5. 5.The average of 5 numbers is 40. When one more number is added, the average becomes 42. What number was added?
  6. 6.Vivaan’s batting average after 10 innings is 23 runs. How many runs must Vivaan score in the next innings to raise the average to 28?
  7. 7.Marks of 6 friends in a quiz: 74, 68, 72, 71, 71, 94. What is their average mark?
  8. 8.Marks of 6 friends in a quiz: 76, 71, 86, 67, 90, 60. What is their average mark?
  9. 9.Marks of 4 friends in a quiz: 61, 63, 81, 87. What is their average mark?
  10. 10.Marks of 4 friends in a quiz: 48, 44, 58, 74. What is their average mark?
  11. 11.The average weight of 12 children is 39 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.The average weight of 11 children is 38 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  13. 13.The average of 9 numbers is 46. When one more number is added, the average becomes 51. What number was added?
  14. 14.The average weight of 6 children is 35 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  15. 15.Marks of 5 friends in a quiz: 29, 13, 13, 41, 34. What is their average mark?
  16. 16.Rahul’s batting average after 5 innings is 23 runs. How many runs must Rahul score in the next innings to raise the average to 24?
  17. 17.A shop sells an average of 63 kg of sugar a day for 4 days, and then 73 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  18. 18.The average of 7 numbers is 22. When one more number is added, the average becomes 24. What number was added?
  19. 19.Marks of 5 friends in a quiz: 26, 29, 34, 28, 83. What is their average mark?
  20. 20.The average of 5 numbers is 48. When one more number is added, the average becomes 53. What number was added?
  21. 21.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)?
  22. 22.The average weight of 6 children is 33 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  23. 23.The average weight of 6 children is 33 kg. One child, who weighs 43 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.The average weight of 5 children is 39 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.Marks of 6 friends in a quiz: 43, 65, 47, 55, 59, 55. What is their average mark?
  26. 26.The average weight of 6 children is 41 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.A shop sells an average of 32 kg of sugar a day for 3 days, and then 53 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  28. 28.The average weight of 10 children is 45 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  29. 29.A shop sells an average of 47 kg of sugar a day for 5 days, and then 67 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  30. 30.The average weight of 5 children is 27 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
  31. 31.The average weight of 5 children is 43 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  32. 32.Marks of 5 friends in a quiz: 21, 19, 17, 10, 58. What is their average mark?
  33. 33.The average of 8 numbers is 43. When one more number is added, the average becomes 44. What number was added?
  34. 34.A shop sells an average of 56 kg of sugar a day for 2 days, and then 78 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  35. 35.The average weight of 7 children is 41 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
  36. 36.A shop sells an average of 68 kg of sugar a day for 2 days, and then 72 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  37. 37.The average weight of 6 children is 44 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
  38. 38.The average of 5 numbers is 41. When one more number is added, the average becomes 44. What number was added?
  39. 39.The average weight of 12 children is 40 kg. One child, who weighs 62 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.Marks of 5 friends in a quiz: 77, 86, 73, 73, 71. What is their average mark?

Answer key

  1. 21
  2. 29
  3. 45
  4. 27
  5. 52
  6. 78
  7. 75
  8. 75
  9. 73
  10. 56
  11. 38
  12. 37
  13. 96
  14. 32
  15. 26
  16. 29
  17. 69
  18. 38
  19. 40
  20. 78
  21. 33
  22. 30
  23. 31
  24. 37
  25. 54
  26. 40
  27. 46
  28. 44
  29. 57
  30. 25
  31. 40
  32. 25
  33. 52
  34. 67
  35. 39
  36. 70
  37. 42
  38. 59
  39. 38
  40. 76

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