← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 679 · 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 numbers is 46. What is the largest of them?
  2. 2.The sum of 3 consecutive numbers is 126. What is the smallest of them?
  3. 3.The sum of two numbers is 70 and their difference is 64. What is the smaller number?
  4. 4.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 18. What is the number?
  5. 5.The sum of 4 consecutive odd numbers is 216. What is the smallest of them?
  6. 6.The sum of two numbers is 35 and their difference is 3. What is the smaller number?
  7. 7.The sum of two numbers is 68 and their difference is 2. What is the smaller number?
  8. 8.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?
  9. 9.The sum of two numbers is 80 and their difference is 24. What is the larger number?
  10. 10.One number is 2 times another. Their difference is 29. What is the smaller number?
  11. 11.The sum of two numbers is 75 and their difference is 13. What is the larger number?
  12. 12.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?
  13. 13.One number is 3 times another. Their difference is 52. What is the smaller number?
  14. 14.The sum of 4 consecutive even numbers is 60. What is the smallest of them?
  15. 15.The sum of two numbers is 35 and their difference is 13. What is the smaller number?
  16. 16.The sum of 5 consecutive numbers is 235. What is the smallest of them?
  17. 17.One number is 6 times another. Their difference is 20. What is the smaller number?
  18. 18.The sum of 4 consecutive odd numbers is 328. What is the largest of them?
  19. 19.The sum of two numbers is 76 and their difference is 66. What is the smaller number?
  20. 20.The sum of 4 consecutive odd numbers is 64. What is the smallest of them?
  21. 21.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 45. What is the number?
  22. 22.The sum of two numbers is 94 and their difference is 4. What is the smaller number?
  23. 23.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?
  24. 24.One number is 6 times another. Their difference is 55. What is the smaller number?
  25. 25.The sum of 4 consecutive numbers is 98. What is the smallest of them?
  26. 26.One number is 5 times another. Their difference is 84. What is the smaller number?
  27. 27.The sum of 4 consecutive numbers is 158. What is the largest of them?
  28. 28.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?
  29. 29.The sum of 3 consecutive numbers is 36. What is the largest of them?
  30. 30.The sum of 4 consecutive even numbers is 52. What is the largest of them?
  31. 31.The sum of two numbers is 48 and their difference is 2. What is the larger number?
  32. 32.The sum of two numbers is 85 and their difference is 5. What is the smaller number?
  33. 33.The sum of 3 consecutive numbers is 111. What is the largest of them?
  34. 34.The sum of 5 consecutive numbers is 50. What is the smallest of them?
  35. 35.The digits of a two-digit number add up to 10. When the digits swap places, the number goes up by 36. What is the number?
  36. 36.The sum of two numbers is 81 and their difference is 67. What is the smaller number?
  37. 37.The sum of 4 consecutive numbers is 58. What is the largest of them?
  38. 38.The digits of a two-digit number add up to 4. When the digits swap places, the number goes up by 18. What is the number?
  39. 39.The sum of 4 consecutive even numbers is 68. What is the largest of them?
  40. 40.The sum of 3 consecutive numbers is 111. What is the smallest of them?

Answer key

  1. 13
  2. 41
  3. 3
  4. 35
  5. 51
  6. 16
  7. 33
  8. 89
  9. 52
  10. 29
  11. 44
  12. 56
  13. 26
  14. 12
  15. 11
  16. 45
  17. 4
  18. 85
  19. 5
  20. 13
  21. 27
  22. 45
  23. 12
  24. 11
  25. 23
  26. 21
  27. 41
  28. 38
  29. 13
  30. 16
  31. 25
  32. 40
  33. 38
  34. 8
  35. 37
  36. 7
  37. 16
  38. 13
  39. 20
  40. 36

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