← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 356 · 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.One number is 6 times another. Their difference is 190. What is the smaller number?
  2. 2.The sum of 3 consecutive odd numbers is 45. What is the smallest of them?
  3. 3.The sum of 4 consecutive odd numbers is 48. What is the largest of them?
  4. 4.The sum of 3 consecutive odd numbers is 63. What is the smallest of them?
  5. 5.The sum of 4 consecutive numbers is 178. What is the largest of them?
  6. 6.One number is 3 times another. Their difference is 46. What is the smaller number?
  7. 7.The sum of 4 consecutive even numbers is 204. What is the largest of them?
  8. 8.The sum of 4 consecutive odd numbers is 128. What is the smallest of them?
  9. 9.One number is 3 times another. Their difference is 40. What is the smaller number?
  10. 10.The sum of two numbers is 84 and their difference is 42. What is the smaller number?
  11. 11.One number is 4 times another. Their difference is 111. What is the smaller number?
  12. 12.The sum of 3 consecutive numbers is 168. What is the smallest of them?
  13. 13.The sum of 3 consecutive numbers is 129. What is the largest of them?
  14. 14.The sum of 3 consecutive numbers is 81. What is the smallest of them?
  15. 15.The sum of 3 consecutive numbers is 84. What is the largest of them?
  16. 16.The digits of a two-digit number add up to 7. When the digits swap places, the number goes up by 9. What is the number?
  17. 17.One number is 2 times another. Their difference is 8. What is the smaller number?
  18. 18.The sum of 3 consecutive even numbers is 192. What is the smallest of them?
  19. 19.The digits of a two-digit number add up to 14. When the digits swap places, the number goes up by 18. What is the number?
  20. 20.The sum of 3 consecutive odd numbers is 81. What is the largest of them?
  21. 21.The sum of 3 consecutive odd numbers is 33. What is the smallest of them?
  22. 22.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?
  23. 23.The sum of two numbers is 55 and their difference is 27. What is the smaller number?
  24. 24.The sum of 3 consecutive numbers is 33. What is the largest of them?
  25. 25.The sum of two numbers is 15 and their difference is 9. What is the larger number?
  26. 26.The sum of two numbers is 87 and their difference is 11. What is the smaller number?
  27. 27.The sum of 5 consecutive numbers is 300. What is the largest of them?
  28. 28.The sum of two numbers is 37 and their difference is 27. What is the larger number?
  29. 29.The sum of 4 consecutive numbers is 178. What is the smallest of them?
  30. 30.The sum of 3 consecutive numbers is 165. What is the largest of them?
  31. 31.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?
  32. 32.The sum of 5 consecutive numbers is 185. What is the largest of them?
  33. 33.The sum of two numbers is 120 and their difference is 76. What is the smaller number?
  34. 34.The digits of a two-digit number add up to 12. When the digits swap places, the number goes up by 18. What is the number?
  35. 35.One number is 2 times another. Their difference is 30. What is the smaller number?
  36. 36.The sum of 3 consecutive even numbers is 42. What is the smallest of them?
  37. 37.The sum of 3 consecutive odd numbers is 147. What is the largest of them?
  38. 38.The sum of 5 consecutive numbers is 90. What is the smallest of them?
  39. 39.The sum of 3 consecutive numbers is 51. What is the largest of them?
  40. 40.The sum of two numbers is 77 and their difference is 75. What is the larger number?

Answer key

  1. 38
  2. 13
  3. 15
  4. 19
  5. 46
  6. 23
  7. 54
  8. 29
  9. 20
  10. 21
  11. 37
  12. 55
  13. 44
  14. 26
  15. 29
  16. 34
  17. 8
  18. 62
  19. 68
  20. 29
  21. 9
  22. 89
  23. 14
  24. 12
  25. 12
  26. 38
  27. 62
  28. 32
  29. 43
  30. 56
  31. 56
  32. 39
  33. 22
  34. 57
  35. 30
  36. 12
  37. 51
  38. 16
  39. 18
  40. 76

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude