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Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 184 · 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 5 consecutive numbers is 160. What is the smallest of them?
  2. 2.One number is 3 times another. Their difference is 16. What is the smaller number?
  3. 3.The sum of two numbers is 137 and their difference is 1. What is the smaller number?
  4. 4.The sum of two numbers is 105 and their difference is 35. What is the larger number?
  5. 5.The sum of 3 consecutive odd numbers is 87. What is the smallest of them?
  6. 6.The sum of 3 consecutive numbers is 183. What is the smallest of them?
  7. 7.The sum of 3 consecutive numbers is 87. What is the largest of them?
  8. 8.The sum of 5 consecutive numbers is 90. What is the largest of them?
  9. 9.The sum of 5 consecutive numbers is 210. What is the smallest of them?
  10. 10.One number is 3 times another. Their difference is 38. What is the smaller number?
  11. 11.The sum of 4 consecutive numbers is 138. What is the largest of them?
  12. 12.The sum of two numbers is 46 and their difference is 8. What is the smaller number?
  13. 13.The sum of 3 consecutive numbers is 174. What is the smallest of them?
  14. 14.The sum of two numbers is 70 and their difference is 26. What is the smaller number?
  15. 15.The sum of two numbers is 34 and their difference is 20. What is the larger number?
  16. 16.The sum of 4 consecutive even numbers is 116. What is the smallest of them?
  17. 17.The sum of two numbers is 113 and their difference is 17. What is the larger number?
  18. 18.The sum of 4 consecutive numbers is 34. What is the smallest of them?
  19. 19.The sum of two numbers is 184 and their difference is 10. What is the larger number?
  20. 20.The sum of 3 consecutive numbers is 117. What is the largest of them?
  21. 21.The sum of two numbers is 153 and their difference is 5. What is the smaller number?
  22. 22.One number is 6 times another. Their difference is 50. What is the smaller number?
  23. 23.The sum of 3 consecutive even numbers is 66. What is the smallest of them?
  24. 24.One number is 5 times another. Their difference is 44. What is the smaller number?
  25. 25.The sum of 3 consecutive even numbers is 222. What is the smallest of them?
  26. 26.The sum of two numbers is 11 and their difference is 9. What is the larger number?
  27. 27.The sum of 3 consecutive even numbers is 60. What is the smallest of them?
  28. 28.One number is 2 times another. Their difference is 4. What is the smaller number?
  29. 29.The sum of two numbers is 61 and their difference is 35. What is the smaller number?
  30. 30.The sum of 4 consecutive numbers is 90. What is the largest of them?
  31. 31.The sum of 4 consecutive numbers is 26. What is the smallest of them?
  32. 32.The sum of 3 consecutive even numbers is 246. What is the smallest of them?
  33. 33.One number is 5 times another. Their difference is 52. What is the smaller number?
  34. 34.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 45. What is the number?
  35. 35.One number is 3 times another. Their difference is 26. What is the smaller number?
  36. 36.One number is 6 times another. Their difference is 15. What is the smaller number?
  37. 37.One number is 6 times another. Their difference is 80. What is the smaller number?
  38. 38.The sum of 4 consecutive numbers is 226. What is the smallest of them?
  39. 39.One number is 5 times another. Their difference is 48. What is the smaller number?
  40. 40.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?

Answer key

  1. 30
  2. 8
  3. 68
  4. 70
  5. 27
  6. 60
  7. 30
  8. 20
  9. 40
  10. 19
  11. 36
  12. 19
  13. 57
  14. 22
  15. 27
  16. 26
  17. 65
  18. 7
  19. 97
  20. 40
  21. 74
  22. 10
  23. 20
  24. 11
  25. 72
  26. 10
  27. 18
  28. 4
  29. 13
  30. 24
  31. 5
  32. 80
  33. 13
  34. 38
  35. 13
  36. 3
  37. 16
  38. 55
  39. 12
  40. 26

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