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Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 582 · 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 3 consecutive even numbers is 168. What is the smallest of them?
  2. 2.The digits of a two-digit number add up to 3. When the digits swap places, the number goes up by 9. What is the number?
  3. 3.The sum of 4 consecutive numbers is 182. What is the smallest of them?
  4. 4.One number is 3 times another. Their difference is 30. What is the smaller number?
  5. 5.The digits of a two-digit number add up to 5. When the digits swap places, the number goes up by 27. What is the number?
  6. 6.The sum of 3 consecutive numbers is 153. What is the largest of them?
  7. 7.The sum of 4 consecutive even numbers is 276. What is the largest of them?
  8. 8.The sum of 5 consecutive numbers is 60. What is the largest of them?
  9. 9.The sum of two numbers is 115 and their difference is 75. What is the larger number?
  10. 10.The sum of 3 consecutive numbers is 81. What is the largest of them?
  11. 11.The sum of 3 consecutive numbers is 138. What is the smallest of them?
  12. 12.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?
  13. 13.The sum of two numbers is 149 and their difference is 23. What is the larger number?
  14. 14.One number is 2 times another. Their difference is 22. What is the smaller number?
  15. 15.The sum of 3 consecutive odd numbers is 147. What is the largest of them?
  16. 16.The sum of 4 consecutive numbers is 190. What is the smallest of them?
  17. 17.The sum of two numbers is 56 and their difference is 54. What is the smaller number?
  18. 18.The sum of 4 consecutive numbers is 46. What is the smallest of them?
  19. 19.The sum of 3 consecutive odd numbers is 159. What is the largest of them?
  20. 20.The sum of 4 consecutive numbers is 206. What is the smallest of them?
  21. 21.The sum of two numbers is 91 and their difference is 23. What is the larger number?
  22. 22.The sum of two numbers is 80 and their difference is 32. What is the larger number?
  23. 23.The sum of 5 consecutive numbers is 265. What is the largest of them?
  24. 24.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?
  25. 25.The sum of 4 consecutive numbers is 214. What is the smallest of them?
  26. 26.One number is 2 times another. Their difference is 18. What is the smaller number?
  27. 27.One number is 4 times another. Their difference is 69. What is the smaller number?
  28. 28.The sum of two numbers is 28 and their difference is 22. What is the larger number?
  29. 29.The sum of 3 consecutive numbers is 111. What is the largest of them?
  30. 30.The sum of two numbers is 14 and their difference is 6. What is the larger number?
  31. 31.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 54. What is the number?
  32. 32.The sum of 3 consecutive odd numbers is 225. What is the smallest of them?
  33. 33.The sum of 4 consecutive odd numbers is 64. What is the smallest of them?
  34. 34.One number is 2 times another. Their difference is 14. What is the smaller number?
  35. 35.One number is 3 times another. Their difference is 34. What is the smaller number?
  36. 36.The sum of two numbers is 52 and their difference is 2. What is the larger number?
  37. 37.One number is 3 times another. Their difference is 18. What is the smaller number?
  38. 38.The sum of 3 consecutive odd numbers is 75. What is the smallest of them?
  39. 39.The sum of two numbers is 27 and their difference is 25. What is the larger number?
  40. 40.One number is 3 times another. Their difference is 54. What is the smaller number?

Answer key

  1. 54
  2. 12
  3. 44
  4. 15
  5. 14
  6. 52
  7. 72
  8. 14
  9. 95
  10. 28
  11. 45
  12. 89
  13. 86
  14. 22
  15. 51
  16. 46
  17. 1
  18. 10
  19. 55
  20. 50
  21. 57
  22. 56
  23. 55
  24. 56
  25. 52
  26. 18
  27. 23
  28. 25
  29. 38
  30. 10
  31. 17
  32. 73
  33. 13
  34. 14
  35. 17
  36. 27
  37. 9
  38. 23
  39. 26
  40. 27

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