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Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 46 · 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.One number is 4 times another. Their difference is 90. What is the smaller number?
  2. 2.The sum of 3 consecutive numbers is 69. What is the largest of them?
  3. 3.One number is 5 times another. Their difference is 44. What is the smaller number?
  4. 4.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?
  5. 5.The sum of two numbers is 68 and their difference is 24. What is the smaller number?
  6. 6.The sum of 4 consecutive odd numbers is 112. What is the smallest of them?
  7. 7.The sum of 5 consecutive numbers is 175. What is the largest of them?
  8. 8.One number is 3 times another. Their difference is 72. What is the smaller number?
  9. 9.One number is 4 times another. Their difference is 63. What is the smaller number?
  10. 10.One number is 4 times another. Their difference is 36. What is the smaller number?
  11. 11.One number is 4 times another. Their difference is 42. What is the smaller number?
  12. 12.One number is 5 times another. Their difference is 156. What is the smaller number?
  13. 13.The sum of 3 consecutive even numbers is 108. What is the smallest of them?
  14. 14.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?
  15. 15.The sum of 3 consecutive even numbers is 60. What is the largest of them?
  16. 16.The sum of two numbers is 25 and their difference is 11. What is the larger number?
  17. 17.The sum of 4 consecutive even numbers is 220. What is the smallest of them?
  18. 18.The sum of two numbers is 82 and their difference is 62. What is the larger number?
  19. 19.One number is 6 times another. Their difference is 100. What is the smaller number?
  20. 20.The sum of two numbers is 107 and their difference is 21. What is the smaller number?
  21. 21.The sum of 4 consecutive even numbers is 276. What is the largest of them?
  22. 22.One number is 6 times another. Their difference is 135. What is the smaller number?
  23. 23.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 27. What is the number?
  24. 24.The sum of two numbers is 46 and their difference is 10. What is the smaller number?
  25. 25.The sum of two numbers is 37 and their difference is 25. What is the smaller number?
  26. 26.The digits of a two-digit number add up to 12. When the digits swap places, the number goes up by 36. What is the number?
  27. 27.One number is 5 times another. Their difference is 24. What is the smaller number?
  28. 28.The sum of two numbers is 68 and their difference is 12. What is the smaller number?
  29. 29.One number is 2 times another. Their difference is 34. What is the smaller number?
  30. 30.The sum of 4 consecutive odd numbers is 56. What is the smallest of them?
  31. 31.The sum of 3 consecutive even numbers is 246. What is the smallest of them?
  32. 32.The digits of a two-digit number add up to 10. When the digits swap places, the number goes up by 54. What is the number?
  33. 33.One number is 5 times another. Their difference is 60. What is the smaller number?
  34. 34.The sum of 4 consecutive numbers is 194. What is the smallest of them?
  35. 35.The sum of 5 consecutive numbers is 85. What is the smallest of them?
  36. 36.The sum of 3 consecutive odd numbers is 153. What is the largest of them?
  37. 37.The sum of 4 consecutive even numbers is 52. What is the smallest of them?
  38. 38.The sum of 4 consecutive numbers is 182. What is the largest of them?
  39. 39.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 9. What is the number?
  40. 40.The sum of two numbers is 76 and their difference is 42. What is the smaller number?

Answer key

  1. 30
  2. 24
  3. 11
  4. 45
  5. 22
  6. 25
  7. 37
  8. 36
  9. 21
  10. 12
  11. 14
  12. 39
  13. 34
  14. 89
  15. 22
  16. 18
  17. 52
  18. 72
  19. 20
  20. 43
  21. 72
  22. 27
  23. 58
  24. 18
  25. 6
  26. 48
  27. 6
  28. 28
  29. 34
  30. 11
  31. 80
  32. 28
  33. 15
  34. 47
  35. 15
  36. 53
  37. 10
  38. 47
  39. 56
  40. 17

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