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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 516 · 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: 57, 67, 52, 65, 44. What is their average mark?
  2. 2.The average of 8 numbers is 28. When one more number is added, the average becomes 34. What number was added?
  3. 3.Marks of 6 friends in a quiz: 52, 65, 79, 53, 71, 64. What is their average mark?
  4. 4.The average weight of 11 children is 48 kg. One child, who weighs 78 kg, leaves the group. What is the new average weight (in kg)?
  5. 5.Marks of 5 friends in a quiz: 71, 69, 50, 52, 53. What is their average mark?
  6. 6.The average of 4 numbers is 38. When one more number is added, the average becomes 40. What number was added?
  7. 7.The average of 9 numbers is 17. When one more number is added, the average becomes 22. What number was added?
  8. 8.Marks of 4 friends in a quiz: 34, 53, 50, 19. What is their average mark?
  9. 9.A shop sells an average of 32 kg of sugar a day for 2 days, and then 20 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  10. 10.The average of 6 numbers is 21. When one more number is added, the average becomes 26. What number was added?
  11. 11.The average weight of 11 children is 29 kg. One child, who weighs 59 kg, leaves the group. What is the new average weight (in kg)?
  12. 12.A shop sells an average of 23 kg of sugar a day for 6 days, and then 77 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  13. 13.A shop sells an average of 63 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)?
  14. 14.The average weight of 5 children is 35 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  15. 15.The average weight of 10 children is 33 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
  16. 16.The average of 9 numbers is 25. When one more number is added, the average becomes 28. What number was added?
  17. 17.Marks of 5 friends in a quiz: 60, 58, 57, 68, 22. What is their average mark?
  18. 18.A shop sells an average of 70 kg of sugar a day for 5 days, and then 44 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  19. 19.Isha’s batting average after 12 innings is 22 runs. How many runs must Isha score in the next innings to raise the average to 23?
  20. 20.Aarav’s batting average after 15 innings is 41 runs. How many runs must Aarav score in the next innings to raise the average to 43?
  21. 21.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)?
  22. 22.Marks of 6 friends in a quiz: 16, 13, 43, 26, 40, 30. What is their average mark?
  23. 23.The average weight of 11 children is 30 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.Priya’s batting average after 13 innings is 42 runs. How many runs must Priya score in the next innings to raise the average to 46?
  25. 25.Marks of 4 friends in a quiz: 55, 58, 82, 73. What is their average mark?
  26. 26.The average weight of 9 children is 42 kg. One child, who weighs 66 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.Dev’s batting average after 13 innings is 29 runs. How many runs must Dev score in the next innings to raise the average to 30?
  28. 28.Isha’s batting average after 7 innings is 35 runs. How many runs must Isha score in the next innings to raise the average to 37?
  29. 29.The average weight of 7 children is 40 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
  30. 30.The average weight of 12 children is 32 kg. One child, who weighs 65 kg, leaves the group. What is the new average weight (in kg)?
  31. 31.A shop sells an average of 25 kg of sugar a day for 3 days, and then 29 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  32. 32.A shop sells an average of 31 kg of sugar a day for 4 days, and then 21 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  33. 33.Karan’s batting average after 12 innings is 25 runs. How many runs must Karan score in the next innings to raise the average to 27?
  34. 34.The average of 4 numbers is 52. When one more number is added, the average becomes 58. What number was added?
  35. 35.The average weight of 11 children is 42 kg. One child, who weighs 72 kg, leaves the group. What is the new average weight (in kg)?
  36. 36.A shop sells an average of 42 kg of sugar a day for 5 days, and then 56 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  37. 37.The average weight of 5 children is 38 kg. One child, who weighs 42 kg, leaves the group. What is the new average weight (in kg)?
  38. 38.Marks of 6 friends in a quiz: 32, 37, 45, 42, 38, 22. What is their average mark?
  39. 39.The average of 4 numbers is 18. When one more number is added, the average becomes 19. What number was added?
  40. 40.The average of 5 numbers is 55. When one more number is added, the average becomes 57. What number was added?

Answer key

  1. 57
  2. 82
  3. 64
  4. 45
  5. 59
  6. 48
  7. 67
  8. 39
  9. 24
  10. 56
  11. 26
  12. 50
  13. 59
  14. 34
  15. 31
  16. 55
  17. 53
  18. 57
  19. 35
  20. 73
  21. 42
  22. 28
  23. 28
  24. 98
  25. 67
  26. 39
  27. 43
  28. 51
  29. 37
  30. 29
  31. 27
  32. 25
  33. 51
  34. 82
  35. 39
  36. 49
  37. 37
  38. 36
  39. 23
  40. 67

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