← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 862 · 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 3 consecutive odd numbers is 27. What is the smallest of them?
  3. 3.The sum of 4 consecutive numbers is 34. What is the largest of them?
  4. 4.The sum of 3 consecutive numbers is 177. What is the largest of them?
  5. 5.The sum of 5 consecutive numbers is 180. What is the smallest of them?
  6. 6.The sum of 3 consecutive odd numbers is 117. What is the largest of them?
  7. 7.One number is 3 times another. Their difference is 38. What is the smaller number?
  8. 8.The sum of 3 consecutive odd numbers is 219. What is the smallest of them?
  9. 9.The sum of two numbers is 82 and their difference is 68. What is the smaller number?
  10. 10.One number is 3 times another. Their difference is 76. What is the smaller number?
  11. 11.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?
  12. 12.The sum of 4 consecutive odd numbers is 200. What is the largest of them?
  13. 13.One number is 3 times another. Their difference is 56. What is the smaller number?
  14. 14.One number is 6 times another. Their difference is 45. What is the smaller number?
  15. 15.The sum of 3 consecutive even numbers is 30. What is the largest of them?
  16. 16.The sum of 4 consecutive numbers is 66. What is the largest of them?
  17. 17.One number is 3 times another. Their difference is 18. What is the smaller number?
  18. 18.The sum of two numbers is 36 and their difference is 32. What is the smaller number?
  19. 19.The sum of two numbers is 132 and their difference is 4. What is the larger number?
  20. 20.The sum of 3 consecutive numbers is 18. What is the largest of them?
  21. 21.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?
  22. 22.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?
  23. 23.The digits of a two-digit number add up to 7. When the digits swap places, the number goes up by 45. What is the number?
  24. 24.The sum of 3 consecutive numbers is 108. What is the smallest of them?
  25. 25.The sum of two numbers is 31 and their difference is 29. What is the smaller number?
  26. 26.The sum of 4 consecutive odd numbers is 64. What is the smallest of them?
  27. 27.One number is 2 times another. Their difference is 3. What is the smaller number?
  28. 28.One number is 3 times another. Their difference is 48. What is the smaller number?
  29. 29.The sum of two numbers is 14 and their difference is 12. What is the smaller number?
  30. 30.The sum of two numbers is 16 and their difference is 14. What is the smaller number?
  31. 31.The sum of 5 consecutive numbers is 45. What is the smallest of them?
  32. 32.The sum of 4 consecutive numbers is 70. What is the smallest of them?
  33. 33.The sum of 5 consecutive numbers is 75. What is the smallest of them?
  34. 34.One number is 2 times another. Their difference is 20. What is the smaller number?
  35. 35.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?
  36. 36.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?
  37. 37.The sum of 3 consecutive numbers is 168. What is the smallest of them?
  38. 38.The sum of two numbers is 163 and their difference is 7. What is the smaller number?
  39. 39.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?
  40. 40.One number is 4 times another. Their difference is 12. What is the smaller number?

Answer key

  1. 15
  2. 7
  3. 10
  4. 60
  5. 34
  6. 41
  7. 19
  8. 71
  9. 7
  10. 38
  11. 78
  12. 53
  13. 28
  14. 9
  15. 12
  16. 18
  17. 9
  18. 2
  19. 68
  20. 7
  21. 23
  22. 56
  23. 16
  24. 35
  25. 1
  26. 13
  27. 3
  28. 24
  29. 1
  30. 1
  31. 7
  32. 16
  33. 13
  34. 20
  35. 69
  36. 29
  37. 55
  38. 78
  39. 37
  40. 4

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