← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 940 · 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 odd numbers is 144. What is the largest of them?
  2. 2.The sum of 3 consecutive even numbers is 30. What is the smallest of them?
  3. 3.The sum of two numbers is 97 and their difference is 19. What is the larger number?
  4. 4.One number is 5 times another. Their difference is 56. What is the smaller number?
  5. 5.One number is 6 times another. Their difference is 25. What is the smaller number?
  6. 6.The sum of 3 consecutive odd numbers is 129. What is the smallest of them?
  7. 7.The sum of two numbers is 90 and their difference is 56. What is the larger number?
  8. 8.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?
  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 digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 63. What is the number?
  11. 11.One number is 5 times another. Their difference is 52. What is the smaller number?
  12. 12.The sum of two numbers is 88 and their difference is 56. What is the smaller number?
  13. 13.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?
  14. 14.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?
  15. 15.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?
  16. 16.The sum of 3 consecutive numbers is 69. What is the largest of them?
  17. 17.One number is 4 times another. Their difference is 90. What is the smaller number?
  18. 18.One number is 6 times another. Their difference is 65. What is the smaller number?
  19. 19.The sum of two numbers is 131 and their difference is 55. What is the larger number?
  20. 20.The sum of two numbers is 59 and their difference is 27. What is the smaller number?
  21. 21.The sum of 4 consecutive odd numbers is 280. What is the smallest of them?
  22. 22.The sum of two numbers is 28 and their difference is 6. What is the smaller number?
  23. 23.The sum of two numbers is 108 and their difference is 22. What is the larger number?
  24. 24.The sum of two numbers is 141 and their difference is 51. What is the larger number?
  25. 25.The sum of two numbers is 21 and their difference is 1. What is the smaller number?
  26. 26.One number is 4 times another. Their difference is 42. What is the smaller number?
  27. 27.The sum of 3 consecutive even numbers is 60. What is the largest of them?
  28. 28.The sum of 3 consecutive odd numbers is 183. What is the largest of them?
  29. 29.The sum of two numbers is 117 and their difference is 7. What is the larger number?
  30. 30.The sum of 3 consecutive odd numbers is 87. What is the smallest of them?
  31. 31.The sum of 3 consecutive numbers is 18. What is the largest of them?
  32. 32.One number is 3 times another. Their difference is 22. What is the smaller number?
  33. 33.The sum of 4 consecutive numbers is 82. What is the largest of them?
  34. 34.The sum of 4 consecutive numbers is 94. What is the smallest of them?
  35. 35.One number is 3 times another. Their difference is 10. What is the smaller number?
  36. 36.The sum of 4 consecutive numbers is 122. What is the smallest of them?
  37. 37.The sum of 3 consecutive numbers is 183. What is the smallest of them?
  38. 38.The sum of 3 consecutive numbers is 117. What is the largest of them?
  39. 39.The sum of 3 consecutive numbers is 27. What is the largest of them?
  40. 40.The sum of 3 consecutive numbers is 90. What is the largest of them?

Answer key

  1. 39
  2. 8
  3. 58
  4. 14
  5. 5
  6. 41
  7. 73
  8. 78
  9. 89
  10. 29
  11. 13
  12. 16
  13. 69
  14. 17
  15. 23
  16. 24
  17. 30
  18. 13
  19. 93
  20. 16
  21. 67
  22. 11
  23. 65
  24. 96
  25. 10
  26. 14
  27. 22
  28. 63
  29. 62
  30. 27
  31. 7
  32. 11
  33. 22
  34. 22
  35. 5
  36. 29
  37. 60
  38. 40
  39. 10
  40. 31

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