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Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 152 · 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 28 and their difference is 4. What is the smaller number?
  2. 2.The sum of 4 consecutive numbers is 154. What is the largest of them?
  3. 3.The sum of 3 consecutive even numbers is 234. What is the smallest of them?
  4. 4.The sum of 3 consecutive numbers is 75. What is the largest of them?
  5. 5.One number is 2 times another. Their difference is 11. What is the smaller number?
  6. 6.The sum of 4 consecutive odd numbers is 184. What is the smallest of them?
  7. 7.The sum of two numbers is 30 and their difference is 10. What is the larger number?
  8. 8.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?
  9. 9.The sum of two numbers is 140 and their difference is 46. What is the larger number?
  10. 10.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?
  11. 11.The sum of two numbers is 141 and their difference is 55. What is the smaller number?
  12. 12.The sum of 5 consecutive numbers is 205. What is the largest of them?
  13. 13.The sum of 4 consecutive odd numbers is 200. What is the largest of them?
  14. 14.One number is 5 times another. Their difference is 124. What is the smaller number?
  15. 15.The sum of 4 consecutive numbers is 42. What is the largest of them?
  16. 16.The sum of 4 consecutive numbers is 170. What is the largest of them?
  17. 17.The sum of 3 consecutive odd numbers is 39. What is the smallest of them?
  18. 18.The sum of two numbers is 88 and their difference is 86. What is the larger number?
  19. 19.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?
  20. 20.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?
  21. 21.One number is 6 times another. Their difference is 75. What is the smaller number?
  22. 22.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?
  23. 23.The sum of 4 consecutive odd numbers is 128. What is the largest of them?
  24. 24.The sum of two numbers is 70 and their difference is 56. What is the larger number?
  25. 25.The digits of a two-digit number add up to 7. When the digits swap places, the number goes up by 45. What is the number?
  26. 26.The sum of 3 consecutive even numbers is 42. What is the largest of them?
  27. 27.The sum of 3 consecutive numbers is 126. What is the smallest of them?
  28. 28.The sum of 4 consecutive odd numbers is 216. What is the smallest of them?
  29. 29.The sum of two numbers is 18 and their difference is 2. What is the larger number?
  30. 30.The sum of 4 consecutive odd numbers is 136. What is the largest of them?
  31. 31.The sum of 3 consecutive odd numbers is 195. What is the smallest of them?
  32. 32.The sum of two numbers is 115 and their difference is 77. What is the smaller number?
  33. 33.The sum of 4 consecutive even numbers is 124. What is the largest of them?
  34. 34.One number is 5 times another. Their difference is 88. What is the smaller number?
  35. 35.The sum of 4 consecutive numbers is 202. What is the smallest of them?
  36. 36.The digits of a two-digit number add up to 15. When the digits swap places, the number goes up by 27. What is the number?
  37. 37.One number is 3 times another. Their difference is 24. What is the smaller number?
  38. 38.The sum of 3 consecutive numbers is 171. What is the largest of them?
  39. 39.The sum of two numbers is 154 and their difference is 40. What is the larger number?
  40. 40.The sum of 3 consecutive numbers is 141. What is the smallest of them?

Answer key

  1. 12
  2. 40
  3. 76
  4. 26
  5. 11
  6. 43
  7. 20
  8. 15
  9. 93
  10. 56
  11. 43
  12. 43
  13. 53
  14. 31
  15. 12
  16. 44
  17. 11
  18. 87
  19. 89
  20. 26
  21. 15
  22. 39
  23. 35
  24. 63
  25. 16
  26. 16
  27. 41
  28. 51
  29. 10
  30. 37
  31. 63
  32. 19
  33. 34
  34. 22
  35. 49
  36. 69
  37. 12
  38. 58
  39. 97
  40. 46

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