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Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 493 · 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 26. What is the largest of them?
  2. 2.The sum of 3 consecutive odd numbers is 135. What is the smallest of them?
  3. 3.The sum of 3 consecutive numbers is 147. What is the largest of them?
  4. 4.The sum of 3 consecutive even numbers is 72. What is the largest of them?
  5. 5.The sum of 4 consecutive odd numbers is 272. What is the largest of them?
  6. 6.One number is 3 times another. Their difference is 56. What is the smaller number?
  7. 7.The sum of two numbers is 129 and their difference is 3. What is the larger number?
  8. 8.The sum of 3 consecutive numbers is 183. What is the smallest of them?
  9. 9.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?
  10. 10.The sum of two numbers is 109 and their difference is 45. What is the larger number?
  11. 11.The sum of two numbers is 76 and their difference is 32. What is the larger number?
  12. 12.One number is 6 times another. Their difference is 90. What is the smaller number?
  13. 13.One number is 5 times another. Their difference is 100. What is the smaller number?
  14. 14.The sum of 4 consecutive even numbers is 92. What is the largest of them?
  15. 15.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?
  16. 16.One number is 6 times another. Their difference is 30. What is the smaller number?
  17. 17.The sum of 3 consecutive even numbers is 138. What is the largest of them?
  18. 18.The sum of two numbers is 58 and their difference is 28. What is the smaller number?
  19. 19.The sum of 3 consecutive numbers is 102. What is the largest of them?
  20. 20.The sum of 3 consecutive even numbers is 174. What is the largest of them?
  21. 21.The sum of two numbers is 52 and their difference is 18. What is the larger number?
  22. 22.The sum of 3 consecutive odd numbers is 153. What is the smallest of them?
  23. 23.The sum of 3 consecutive even numbers is 108. What is the smallest of them?
  24. 24.The sum of 3 consecutive odd numbers is 201. What is the smallest of them?
  25. 25.The sum of 4 consecutive odd numbers is 184. What is the smallest of them?
  26. 26.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?
  27. 27.The sum of 3 consecutive even numbers is 156. What is the smallest of them?
  28. 28.The sum of 3 consecutive numbers is 111. What is the smallest of them?
  29. 29.The sum of two numbers is 89 and their difference is 61. What is the larger number?
  30. 30.The sum of 3 consecutive numbers is 87. What is the smallest of them?
  31. 31.One number is 2 times another. Their difference is 11. What is the smaller number?
  32. 32.The sum of 3 consecutive even numbers is 234. What is the largest of them?
  33. 33.The sum of two numbers is 50 and their difference is 12. What is the smaller number?
  34. 34.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 36. What is the number?
  35. 35.The sum of two numbers is 81 and their difference is 63. What is the smaller number?
  36. 36.One number is 5 times another. Their difference is 84. What is the smaller number?
  37. 37.The sum of two numbers is 37 and their difference is 35. What is the larger number?
  38. 38.The digits of a two-digit number add up to 10. When the digits swap places, the number goes up by 72. What is the number?
  39. 39.The sum of 3 consecutive numbers is 159. What is the smallest of them?
  40. 40.The sum of 4 consecutive numbers is 90. What is the largest of them?

Answer key

  1. 8
  2. 43
  3. 50
  4. 26
  5. 71
  6. 28
  7. 66
  8. 60
  9. 89
  10. 77
  11. 54
  12. 18
  13. 25
  14. 26
  15. 78
  16. 6
  17. 48
  18. 15
  19. 35
  20. 60
  21. 35
  22. 49
  23. 34
  24. 65
  25. 43
  26. 23
  27. 50
  28. 36
  29. 75
  30. 28
  31. 11
  32. 80
  33. 19
  34. 26
  35. 9
  36. 21
  37. 36
  38. 19
  39. 52
  40. 24

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