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Average Questions Worksheet

Quantitative aptitude lesson 16: Averages · Set 431 · 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 29 kg of sugar a day for 4 days, and then 49 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  2. 2.A shop sells an average of 40 kg of sugar a day for 4 days, and then 31 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  3. 3.The average of 9 numbers is 21. When one more number is added, the average becomes 27. What number was added?
  4. 4.Marks of 6 friends in a quiz: 27, 24, 23, 16, 10, 44. What is their average mark?
  5. 5.A shop sells an average of 34 kg of sugar a day for 4 days, and then 30 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  6. 6.The average weight of 10 children is 36 kg. One child, who weighs 63 kg, leaves the group. What is the new average weight (in kg)?
  7. 7.Saanvi’s batting average after 15 innings is 26 runs. How many runs must Saanvi score in the next innings to raise the average to 27?
  8. 8.Marks of 4 friends in a quiz: 93, 63, 63, 93. What is their average mark?
  9. 9.A shop sells an average of 21 kg of sugar a day for 3 days, and then 37 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  10. 10.The average of 4 numbers is 15. When one more number is added, the average becomes 20. What number was added?
  11. 11.Rahul’s batting average after 10 innings is 36 runs. How many runs must Rahul score in the next innings to raise the average to 38?
  12. 12.The average of 5 numbers is 25. When one more number is added, the average becomes 27. What number was added?
  13. 13.Ishaan’s batting average after 15 innings is 28 runs. How many runs must Ishaan score in the next innings to raise the average to 29?
  14. 14.The average of 5 numbers is 17. When one more number is added, the average becomes 18. What number was added?
  15. 15.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)?
  16. 16.Marks of 5 friends in a quiz: 86, 88, 70, 79, 82. What is their average mark?
  17. 17.The average of 9 numbers is 23. When one more number is added, the average becomes 26. What number was added?
  18. 18.A shop sells an average of 33 kg of sugar a day for 3 days, and then 35 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  19. 19.A shop sells an average of 66 kg of sugar a day for 3 days, and then 80 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  20. 20.The average of 4 numbers is 39. When one more number is added, the average becomes 40. What number was added?
  21. 21.Marks of 6 friends in a quiz: 29, 30, 20, 24, 43, 58. What is their average mark?
  22. 22.A shop sells an average of 39 kg of sugar a day for 5 days, and then 75 kg a day for the next 4 days. What is the average sale per day for all 9 days (in kg)?
  23. 23.A shop sells an average of 51 kg of sugar a day for 4 days, and then 46 kg a day for the next 6 days. What is the average sale per day for all 10 days (in kg)?
  24. 24.Marks of 4 friends in a quiz: 35, 35, 41, 13. What is their average mark?
  25. 25.Marks of 6 friends in a quiz: 49, 27, 42, 28, 45, 25. What is their average mark?
  26. 26.The average of 7 numbers is 44. When one more number is added, the average becomes 48. What number was added?
  27. 27.The average of 7 numbers is 24. When one more number is added, the average becomes 26. What number was added?
  28. 28.Vivaan’s batting average after 12 innings is 28 runs. How many runs must Vivaan score in the next innings to raise the average to 29?
  29. 29.Marks of 6 friends in a quiz: 97, 98, 74, 76, 91, 68. What is their average mark?
  30. 30.Marks of 4 friends in a quiz: 12, 35, 7, 26. What is their average mark?
  31. 31.The average weight of 11 children is 35 kg. One child, who weighs 65 kg, leaves the group. What is the new average weight (in kg)?
  32. 32.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)?
  33. 33.Marks of 4 friends in a quiz: 72, 80, 79, 49. What is their average mark?
  34. 34.A shop sells an average of 72 kg of sugar a day for 3 days, and then 22 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
  35. 35.A shop sells an average of 22 kg of sugar a day for 3 days, and then 49 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
  36. 36.The average of 7 numbers is 55. When one more number is added, the average becomes 58. What number was added?
  37. 37.A shop sells an average of 50 kg of sugar a day for 6 days, and then 28 kg a day for the next 5 days. What is the average sale per day for all 11 days (in kg)?
  38. 38.The average weight of 5 children is 27 kg. One child, who weighs 31 kg, leaves the group. What is the new average weight (in kg)?
  39. 39.The average of 5 numbers is 28. When one more number is added, the average becomes 30. What number was added?
  40. 40.Ananya’s batting average after 6 innings is 39 runs. How many runs must Ananya score in the next innings to raise the average to 41?

Answer key

  1. 39
  2. 37
  3. 81
  4. 24
  5. 32
  6. 33
  7. 42
  8. 78
  9. 29
  10. 40
  11. 58
  12. 37
  13. 44
  14. 23
  15. 43
  16. 81
  17. 53
  18. 34
  19. 73
  20. 44
  21. 34
  22. 55
  23. 48
  24. 31
  25. 36
  26. 76
  27. 40
  28. 41
  29. 84
  30. 20
  31. 32
  32. 39
  33. 70
  34. 47
  35. 40
  36. 79
  37. 40
  38. 26
  39. 40
  40. 53

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