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Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 484 · 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 odd numbers is 56. What is the smallest of them?
  2. 2.One number is 6 times another. Their difference is 200. What is the smaller number?
  3. 3.One number is 5 times another. Their difference is 68. What is the smaller number?
  4. 4.One number is 4 times another. Their difference is 117. What is the smaller number?
  5. 5.The sum of 3 consecutive numbers is 105. What is the smallest of them?
  6. 6.One number is 2 times another. Their difference is 26. What is the smaller number?
  7. 7.One number is 5 times another. Their difference is 92. What is the smaller number?
  8. 8.The sum of 4 consecutive numbers is 78. What is the largest of them?
  9. 9.One number is 6 times another. Their difference is 85. What is the smaller number?
  10. 10.One number is 4 times another. Their difference is 120. What is the smaller number?
  11. 11.The sum of 3 consecutive numbers is 180. What is the largest of them?
  12. 12.One number is 5 times another. Their difference is 48. What is the smaller number?
  13. 13.One number is 3 times another. Their difference is 38. What is the smaller number?
  14. 14.The sum of 4 consecutive even numbers is 164. What is the smallest of them?
  15. 15.The sum of 5 consecutive numbers is 200. What is the largest of them?
  16. 16.The sum of two numbers is 91 and their difference is 55. What is the smaller number?
  17. 17.The sum of 4 consecutive numbers is 50. What is the smallest of them?
  18. 18.The sum of 3 consecutive odd numbers is 81. What is the largest of them?
  19. 19.One number is 3 times another. Their difference is 78. What is the smaller number?
  20. 20.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 63. What is the number?
  21. 21.The sum of two numbers is 46 and their difference is 42. What is the larger number?
  22. 22.The sum of two numbers is 45 and their difference is 39. What is the smaller number?
  23. 23.The digits of a two-digit number add up to 12. When the digits swap places, the number goes up by 54. What is the number?
  24. 24.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 27. What is the number?
  25. 25.The sum of 5 consecutive numbers is 305. What is the largest of them?
  26. 26.The sum of two numbers is 86 and their difference is 4. What is the larger number?
  27. 27.The sum of 3 consecutive numbers is 72. What is the smallest of them?
  28. 28.The sum of 3 consecutive odd numbers is 123. What is the largest of them?
  29. 29.The sum of 5 consecutive numbers is 185. What is the largest of them?
  30. 30.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?
  31. 31.The sum of 3 consecutive even numbers is 132. What is the smallest of them?
  32. 32.One number is 6 times another. Their difference is 115. What is the smaller number?
  33. 33.The sum of 3 consecutive numbers is 33. What is the largest of them?
  34. 34.The sum of 4 consecutive even numbers is 76. What is the largest of them?
  35. 35.One number is 5 times another. Their difference is 88. What is the smaller number?
  36. 36.The sum of 4 consecutive odd numbers is 296. What is the largest of them?
  37. 37.The sum of 4 consecutive odd numbers is 216. What is the largest of them?
  38. 38.One number is 6 times another. Their difference is 130. What is the smaller number?
  39. 39.The sum of 3 consecutive numbers is 81. What is the smallest of them?
  40. 40.The sum of two numbers is 72 and their difference is 58. What is the smaller number?

Answer key

  1. 11
  2. 40
  3. 17
  4. 39
  5. 34
  6. 26
  7. 23
  8. 21
  9. 17
  10. 40
  11. 61
  12. 12
  13. 19
  14. 38
  15. 42
  16. 18
  17. 11
  18. 29
  19. 39
  20. 18
  21. 44
  22. 3
  23. 39
  24. 36
  25. 63
  26. 45
  27. 23
  28. 43
  29. 39
  30. 78
  31. 42
  32. 23
  33. 12
  34. 22
  35. 22
  36. 77
  37. 57
  38. 26
  39. 26
  40. 7

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