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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 468 · 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 66 kg of sugar a day for 6 days, and then 27 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
  2. 2.A shop sells an average of 25 kg of sugar a day for 4 days, and then 60 kg a day for the next 3 days. What is the average sale per day for all 7 days (in kg)?
  3. 3.Marks of 5 friends in a quiz: 97, 81, 68, 89, 80. What is their average mark?
  4. 4.The average of 9 numbers is 23. When one more number is added, the average becomes 27. What number was added?
  5. 5.The average weight of 10 children is 32 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.The average of 4 numbers is 27. When one more number is added, the average becomes 31. What number was added?
  7. 7.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)?
  8. 8.Marks of 4 friends in a quiz: 86, 88, 87, 95. What is their average mark?
  9. 9.Marks of 6 friends in a quiz: 31, 33, 48, 37, 45, 16. What is their average mark?
  10. 10.Marks of 5 friends in a quiz: 74, 55, 71, 63, 57. What is their average mark?
  11. 11.The average of 4 numbers is 50. When one more number is added, the average becomes 52. What number was added?
  12. 12.A shop sells an average of 80 kg of sugar a day for 2 days, and then 32 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  13. 13.The average of 5 numbers is 45. When one more number is added, the average becomes 50. What number was added?
  14. 14.A shop sells an average of 37 kg of sugar a day for 3 days, and then 51 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  15. 15.Marks of 4 friends in a quiz: 15, 37, 29, 27. What is their average mark?
  16. 16.Marks of 5 friends in a quiz: 67, 43, 61, 65, 29. What is their average mark?
  17. 17.The average of 7 numbers is 22. When one more number is added, the average becomes 24. What number was added?
  18. 18.Marks of 6 friends in a quiz: 42, 67, 46, 52, 46, 89. What is their average mark?
  19. 19.Marks of 4 friends in a quiz: 66, 83, 90, 61. What is their average mark?
  20. 20.Marks of 5 friends in a quiz: 41, 28, 29, 29, 53. What is their average mark?
  21. 21.The average weight of 9 children is 30 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
  22. 22.A shop sells an average of 23 kg of sugar a day for 2 days, and then 75 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  23. 23.The average weight of 12 children is 36 kg. One child, who weighs 69 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.Marks of 6 friends in a quiz: 47, 47, 59, 58, 52, 73. What is their average mark?
  25. 25.Priya’s batting average after 7 innings is 42 runs. How many runs must Priya score in the next innings to raise the average to 43?
  26. 26.The average weight of 9 children is 31 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  27. 27.Marks of 6 friends in a quiz: 40, 26, 44, 50, 37, 25. What is their average mark?
  28. 28.The average weight of 7 children is 28 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  29. 29.Marks of 6 friends in a quiz: 13, 11, 19, 36, 13, 40. What is their average mark?
  30. 30.Isha’s batting average after 12 innings is 47 runs. How many runs must Isha score in the next innings to raise the average to 51?
  31. 31.Marks of 6 friends in a quiz: 59, 80, 63, 65, 79, 98. What is their average mark?
  32. 32.A shop sells an average of 20 kg of sugar a day for 5 days, and then 50 kg a day for the next 5 days. What is the average sale per day for all 10 days (in kg)?
  33. 33.Aarav’s batting average after 15 innings is 25 runs. How many runs must Aarav score in the next innings to raise the average to 28?
  34. 34.The average weight of 6 children is 45 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  35. 35.Marks of 5 friends in a quiz: 34, 46, 38, 34, 93. What is their average mark?
  36. 36.A shop sells an average of 36 kg of sugar a day for 6 days, and then 68 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
  37. 37.The average of 6 numbers is 44. When one more number is added, the average becomes 48. What number was added?
  38. 38.A shop sells an average of 66 kg of sugar a day for 2 days, and then 58 kg a day for the next 6 days. What is the average sale per day for all 8 days (in kg)?
  39. 39.Marks of 5 friends in a quiz: 34, 11, 27, 9, 24. What is their average mark?
  40. 40.Diya’s batting average after 15 innings is 24 runs. How many runs must Diya score in the next innings to raise the average to 26?

Answer key

  1. 53
  2. 40
  3. 83
  4. 63
  5. 31
  6. 47
  7. 40
  8. 89
  9. 35
  10. 64
  11. 60
  12. 56
  13. 75
  14. 44
  15. 27
  16. 53
  17. 38
  18. 57
  19. 75
  20. 36
  21. 29
  22. 62
  23. 33
  24. 56
  25. 50
  26. 28
  27. 37
  28. 26
  29. 22
  30. 99
  31. 74
  32. 35
  33. 73
  34. 44
  35. 49
  36. 52
  37. 72
  38. 60
  39. 21
  40. 56

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