← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 154 · 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 48. What is the largest of them?
  2. 2.The sum of two numbers is 134 and their difference is 2. What is the larger number?
  3. 3.The sum of 4 consecutive odd numbers is 56. What is the smallest of them?
  4. 4.The sum of 3 consecutive numbers is 27. What is the largest of them?
  5. 5.The sum of two numbers is 48 and their difference is 40. What is the smaller number?
  6. 6.The sum of two numbers is 87 and their difference is 67. What is the smaller number?
  7. 7.The sum of 3 consecutive numbers is 57. What is the smallest of them?
  8. 8.The sum of 4 consecutive even numbers is 108. What is the largest of them?
  9. 9.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?
  10. 10.The sum of 3 consecutive numbers is 180. What is the largest of them?
  11. 11.The digits of a two-digit number add up to 16. When the digits swap places, the number goes up by 18. What is the number?
  12. 12.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?
  13. 13.The sum of 3 consecutive odd numbers is 93. What is the largest of them?
  14. 14.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?
  15. 15.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 9. What is the number?
  16. 16.The sum of 3 consecutive numbers is 183. What is the largest of them?
  17. 17.One number is 2 times another. Their difference is 32. What is the smaller number?
  18. 18.The sum of two numbers is 60 and their difference is 2. What is the smaller number?
  19. 19.The sum of 4 consecutive numbers is 126. What is the smallest of them?
  20. 20.The sum of 4 consecutive numbers is 162. What is the smallest of them?
  21. 21.One number is 4 times another. Their difference is 27. What is the smaller number?
  22. 22.One number is 5 times another. Their difference is 128. What is the smaller number?
  23. 23.One number is 6 times another. Their difference is 15. What is the smaller number?
  24. 24.The sum of 4 consecutive odd numbers is 128. What is the largest of them?
  25. 25.One number is 6 times another. Their difference is 30. What is the smaller number?
  26. 26.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?
  27. 27.The sum of two numbers is 54 and their difference is 18. What is the smaller number?
  28. 28.The sum of 4 consecutive odd numbers is 80. What is the largest of them?
  29. 29.The sum of 4 consecutive numbers is 174. What is the largest of them?
  30. 30.The sum of 3 consecutive even numbers is 216. What is the smallest of them?
  31. 31.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?
  32. 32.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?
  33. 33.The sum of two numbers is 156 and their difference is 30. What is the larger number?
  34. 34.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?
  35. 35.The sum of 3 consecutive even numbers is 186. What is the largest of them?
  36. 36.The sum of two numbers is 119 and their difference is 3. What is the larger number?
  37. 37.The sum of 3 consecutive numbers is 84. What is the largest of them?
  38. 38.The sum of two numbers is 35 and their difference is 3. What is the larger number?
  39. 39.One number is 4 times another. Their difference is 57. What is the smaller number?
  40. 40.The sum of 5 consecutive numbers is 300. What is the smallest of them?

Answer key

  1. 15
  2. 68
  3. 11
  4. 10
  5. 4
  6. 10
  7. 18
  8. 30
  9. 78
  10. 61
  11. 79
  12. 68
  13. 33
  14. 56
  15. 67
  16. 62
  17. 32
  18. 29
  19. 30
  20. 39
  21. 9
  22. 32
  23. 3
  24. 35
  25. 6
  26. 12
  27. 18
  28. 23
  29. 45
  30. 70
  31. 69
  32. 89
  33. 93
  34. 14
  35. 64
  36. 61
  37. 29
  38. 19
  39. 19
  40. 58

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