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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 180 · 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: 78, 58, 70, 78, 36. What is their average mark?
  2. 2.The average of 4 numbers is 39. When one more number is added, the average becomes 41. What number was added?
  3. 3.Marks of 4 friends in a quiz: 25, 47, 43, 29. What is their average mark?
  4. 4.The average of 5 numbers is 35. When one more number is added, the average becomes 41. What number was added?
  5. 5.Zoya’s batting average after 6 innings is 27 runs. How many runs must Zoya score in the next innings to raise the average to 30?
  6. 6.The average of 5 numbers is 56. When one more number is added, the average becomes 57. What number was added?
  7. 7.The average of 8 numbers is 51. When one more number is added, the average becomes 52. What number was added?
  8. 8.Rohan’s batting average after 5 innings is 47 runs. How many runs must Rohan score in the next innings to raise the average to 50?
  9. 9.The average of 6 numbers is 19. When one more number is added, the average becomes 22. What number was added?
  10. 10.Marks of 6 friends in a quiz: 71, 79, 63, 72, 86, 97. What is their average mark?
  11. 11.The average weight of 9 children is 47 kg. One child, who weighs 63 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.A shop sells an average of 73 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)?
  13. 13.The average weight of 7 children is 44 kg. One child, who weighs 56 kg, leaves the group. What is the new average weight (in kg)?
  14. 14.Diya’s batting average after 11 innings is 32 runs. How many runs must Diya score in the next innings to raise the average to 33?
  15. 15.The average of 8 numbers is 42. When one more number is added, the average becomes 48. What number was added?
  16. 16.The average weight of 8 children is 36 kg. One child, who weighs 57 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.The average weight of 8 children is 38 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  19. 19.Marks of 5 friends in a quiz: 67, 65, 64, 74, 90. What is their average mark?
  20. 20.A shop sells an average of 53 kg of sugar a day for 3 days, and then 63 kg a day for the next 2 days. What is the average sale per day for all 5 days (in kg)?
  21. 21.A shop sells an average of 22 kg of sugar a day for 6 days, and then 32 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  22. 22.The average of 7 numbers is 29. When one more number is added, the average becomes 35. What number was added?
  23. 23.The average of 8 numbers is 44. When one more number is added, the average becomes 50. What number was added?
  24. 24.The average weight of 11 children is 31 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  25. 25.The average weight of 10 children is 40 kg. One child, who weighs 67 kg, leaves the group. What is the new average weight (in kg)?
  26. 26.The average weight of 11 children is 28 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.The average weight of 10 children is 47 kg. One child, who weighs 74 kg, leaves the group. What is the new average weight (in kg)?
  28. 28.Marks of 5 friends in a quiz: 54, 52, 30, 31, 58. What is their average mark?
  29. 29.The average of 9 numbers is 18. When one more number is added, the average becomes 20. What number was added?
  30. 30.A shop sells an average of 33 kg of sugar a day for 3 days, and then 55 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  31. 31.Dev’s batting average after 13 innings is 40 runs. How many runs must Dev score in the next innings to raise the average to 42?
  32. 32.The average weight of 7 children is 38 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  33. 33.The average of 4 numbers is 29. When one more number is added, the average becomes 31. What number was added?
  34. 34.The average weight of 12 children is 30 kg. One child, who weighs 63 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.Marks of 4 friends in a quiz: 29, 45, 47, 39. What is their average mark?
  36. 36.Marks of 6 friends in a quiz: 57, 71, 55, 64, 62, 93. What is their average mark?
  37. 37.Marks of 4 friends in a quiz: 29, 28, 40, 75. What is their average mark?
  38. 38.Manav’s batting average after 10 innings is 34 runs. How many runs must Manav score in the next innings to raise the average to 36?
  39. 39.The average weight of 12 children is 44 kg. One child, who weighs 77 kg, leaves the group. What is the new average weight (in kg)?
  40. 40.A shop sells an average of 42 kg of sugar a day for 2 days, and then 21 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?

Answer key

  1. 64
  2. 49
  3. 36
  4. 71
  5. 48
  6. 62
  7. 60
  8. 65
  9. 40
  10. 78
  11. 45
  12. 49
  13. 42
  14. 44
  15. 96
  16. 33
  17. 38
  18. 37
  19. 72
  20. 57
  21. 27
  22. 77
  23. 98
  24. 29
  25. 37
  26. 26
  27. 44
  28. 45
  29. 38
  30. 44
  31. 68
  32. 36
  33. 39
  34. 27
  35. 40
  36. 67
  37. 43
  38. 56
  39. 41
  40. 27

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