← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 841 · 40 questions
TalentJR

The method (Use the structure): n consecutive numbers with sum S: the middle (average) is S ÷ n. From sum and difference: larger = (sum + difference) ÷ 2, smaller = (sum − difference) ÷ 2. Swapping the digits changes the number by 9 × (difference of the digits). “k times another, difference D”: smaller = D ÷ (k − 1).

NameDateTime takenScore ___ / 40
  1. 1.The sum of 4 consecutive numbers is 46. What is the largest of them?
  2. 2.The sum of 4 consecutive odd numbers is 312. What is the smallest of them?
  3. 3.One number is 3 times another. Their difference is 14. What is the smaller number?
  4. 4.The sum of 3 consecutive numbers is 66. What is the smallest of them?
  5. 5.The sum of 5 consecutive numbers is 230. What is the largest of them?
  6. 6.The digits of a two-digit number add up to 4. When the digits swap places, the number goes up by 18. What is the number?
  7. 7.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 9. What is the number?
  8. 8.The digits of a two-digit number add up to 15. When the digits swap places, the number goes up by 9. What is the number?
  9. 9.The sum of two numbers is 115 and their difference is 9. What is the larger number?
  10. 10.The sum of 4 consecutive numbers is 142. What is the largest of them?
  11. 11.The sum of two numbers is 41 and their difference is 29. What is the smaller number?
  12. 12.The digits of a two-digit number add up to 5. When the digits swap places, the number goes up by 9. What is the number?
  13. 13.The sum of 5 consecutive numbers is 110. What is the smallest of them?
  14. 14.The digits of a two-digit number add up to 5. When the digits swap places, the number goes up by 27. What is the number?
  15. 15.The sum of 4 consecutive numbers is 102. What is the largest of them?
  16. 16.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 45. What is the number?
  17. 17.The digits of a two-digit number add up to 17. When the digits swap places, the number goes up by 9. What is the number?
  18. 18.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 63. What is the number?
  19. 19.One number is 3 times another. Their difference is 76. What is the smaller number?
  20. 20.One number is 2 times another. Their difference is 5. What is the smaller number?
  21. 21.The sum of 4 consecutive even numbers is 116. What is the smallest of them?
  22. 22.The sum of two numbers is 27 and their difference is 1. What is the larger number?
  23. 23.The sum of 4 consecutive even numbers is 36. What is the largest of them?
  24. 24.The sum of 4 consecutive numbers is 206. What is the smallest of them?
  25. 25.The sum of 4 consecutive numbers is 218. What is the smallest of them?
  26. 26.One number is 2 times another. Their difference is 30. What is the smaller number?
  27. 27.The sum of 3 consecutive numbers is 168. What is the largest of them?
  28. 28.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 45. What is the number?
  29. 29.One number is 3 times another. Their difference is 72. What is the smaller number?
  30. 30.One number is 4 times another. Their difference is 9. What is the smaller number?
  31. 31.The sum of 3 consecutive even numbers is 90. What is the largest of them?
  32. 32.The sum of 5 consecutive numbers is 55. What is the largest of them?
  33. 33.The sum of 3 consecutive numbers is 51. What is the largest of them?
  34. 34.One number is 2 times another. Their difference is 9. What is the smaller number?
  35. 35.The sum of 3 consecutive numbers is 93. What is the largest of them?
  36. 36.The sum of 3 consecutive even numbers is 78. What is the smallest of them?
  37. 37.One number is 5 times another. Their difference is 72. What is the smaller number?
  38. 38.The sum of 3 consecutive numbers is 183. What is the largest of them?
  39. 39.One number is 3 times another. Their difference is 54. What is the smaller number?
  40. 40.One number is 3 times another. Their difference is 48. What is the smaller number?

Answer key

  1. 13
  2. 75
  3. 7
  4. 21
  5. 48
  6. 13
  7. 45
  8. 78
  9. 62
  10. 37
  11. 6
  12. 23
  13. 20
  14. 14
  15. 27
  16. 49
  17. 89
  18. 29
  19. 38
  20. 5
  21. 26
  22. 14
  23. 12
  24. 50
  25. 53
  26. 30
  27. 57
  28. 27
  29. 36
  30. 3
  31. 32
  32. 13
  33. 18
  34. 9
  35. 32
  36. 24
  37. 18
  38. 62
  39. 27
  40. 24

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude