← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 601 · 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 two numbers is 103 and their difference is 95. What is the smaller number?
  2. 2.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?
  3. 3.One number is 3 times another. Their difference is 10. What is the smaller number?
  4. 4.The sum of 5 consecutive numbers is 250. What is the smallest of them?
  5. 5.One number is 3 times another. Their difference is 52. What is the smaller number?
  6. 6.The sum of two numbers is 85 and their difference is 21. What is the smaller number?
  7. 7.The sum of two numbers is 95 and their difference is 17. What is the smaller number?
  8. 8.The sum of 4 consecutive even numbers is 284. What is the largest of them?
  9. 9.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 18. What is the number?
  10. 10.The sum of 4 consecutive odd numbers is 64. What is the smallest of them?
  11. 11.The sum of 3 consecutive numbers is 33. What is the largest of them?
  12. 12.The sum of 4 consecutive even numbers is 140. What is the largest of them?
  13. 13.One number is 6 times another. Their difference is 135. What is the smaller number?
  14. 14.One number is 5 times another. Their difference is 52. What is the smaller number?
  15. 15.One number is 2 times another. Their difference is 6. What is the smaller number?
  16. 16.The sum of two numbers is 73 and their difference is 57. What is the larger number?
  17. 17.One number is 5 times another. Their difference is 24. What is the smaller number?
  18. 18.One number is 4 times another. Their difference is 45. What is the smaller number?
  19. 19.The sum of two numbers is 25 and their difference is 11. What is the larger number?
  20. 20.One number is 5 times another. Their difference is 44. What is the smaller number?
  21. 21.The sum of 4 consecutive even numbers is 108. What is the smallest of them?
  22. 22.The sum of two numbers is 106 and their difference is 58. What is the larger number?
  23. 23.The sum of 4 consecutive numbers is 202. What is the largest of them?
  24. 24.The sum of two numbers is 40 and their difference is 20. What is the smaller number?
  25. 25.One number is 5 times another. Their difference is 64. What is the smaller number?
  26. 26.One number is 6 times another. Their difference is 180. What is the smaller number?
  27. 27.The sum of 4 consecutive numbers is 130. What is the largest of them?
  28. 28.One number is 4 times another. Their difference is 21. What is the smaller number?
  29. 29.The sum of two numbers is 20 and their difference is 12. What is the smaller number?
  30. 30.The sum of 4 consecutive odd numbers is 168. What is the smallest of them?
  31. 31.The sum of 3 consecutive even numbers is 72. What is the smallest of them?
  32. 32.The sum of 4 consecutive numbers is 38. What is the smallest of them?
  33. 33.The sum of 4 consecutive numbers is 82. What is the smallest of them?
  34. 34.The digits of a two-digit number add up to 6. When the digits swap places, the number goes up by 36. What is the number?
  35. 35.The sum of two numbers is 97 and their difference is 71. What is the smaller number?
  36. 36.The sum of 3 consecutive numbers is 165. What is the largest of them?
  37. 37.The sum of 4 consecutive odd numbers is 264. What is the smallest of them?
  38. 38.One number is 4 times another. Their difference is 66. What is the smaller number?
  39. 39.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 9. What is the number?
  40. 40.The sum of 3 consecutive odd numbers is 45. What is the smallest of them?

Answer key

  1. 4
  2. 89
  3. 5
  4. 48
  5. 26
  6. 32
  7. 39
  8. 74
  9. 35
  10. 13
  11. 12
  12. 38
  13. 27
  14. 13
  15. 6
  16. 65
  17. 6
  18. 15
  19. 18
  20. 11
  21. 24
  22. 82
  23. 52
  24. 10
  25. 16
  26. 36
  27. 34
  28. 7
  29. 4
  30. 39
  31. 22
  32. 8
  33. 19
  34. 15
  35. 13
  36. 56
  37. 63
  38. 22
  39. 67
  40. 13

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