← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 514 · 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 3 consecutive numbers is 48. What is the smallest of them?
  2. 2.The digits of a two-digit number add up to 6. When the digits swap places, the number goes up by 18. What is the number?
  3. 3.The sum of 4 consecutive even numbers is 276. What is the smallest of them?
  4. 4.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 27. What is the number?
  5. 5.The sum of 4 consecutive odd numbers is 192. What is the largest of them?
  6. 6.The sum of two numbers is 38 and their difference is 18. What is the larger number?
  7. 7.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 27. What is the number?
  8. 8.The sum of 4 consecutive numbers is 242. What is the largest of them?
  9. 9.One number is 3 times another. Their difference is 22. What is the smaller number?
  10. 10.The sum of 4 consecutive even numbers is 116. What is the smallest of them?
  11. 11.The sum of 4 consecutive odd numbers is 224. What is the smallest of them?
  12. 12.The sum of 3 consecutive numbers is 102. What is the largest of them?
  13. 13.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?
  14. 14.One number is 4 times another. Their difference is 102. What is the smaller number?
  15. 15.One number is 6 times another. Their difference is 190. What is the smaller number?
  16. 16.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?
  17. 17.One number is 6 times another. Their difference is 55. What is the smaller number?
  18. 18.The sum of 3 consecutive even numbers is 234. What is the smallest of them?
  19. 19.The sum of two numbers is 58 and their difference is 6. What is the smaller number?
  20. 20.One number is 3 times another. Their difference is 20. What is the smaller number?
  21. 21.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 45. What is the number?
  22. 22.The sum of 4 consecutive numbers is 38. What is the largest of them?
  23. 23.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?
  24. 24.The sum of 3 consecutive even numbers is 66. What is the smallest of them?
  25. 25.The sum of 3 consecutive numbers is 150. What is the smallest of them?
  26. 26.The sum of 3 consecutive odd numbers is 69. What is the smallest of them?
  27. 27.The digits of a two-digit number add up to 12. When the digits swap places, the number goes up by 36. What is the number?
  28. 28.The sum of 3 consecutive odd numbers is 207. What is the largest of them?
  29. 29.The sum of 3 consecutive odd numbers is 111. What is the largest of them?
  30. 30.The sum of two numbers is 150 and their difference is 2. What is the larger number?
  31. 31.The sum of two numbers is 107 and their difference is 33. What is the smaller number?
  32. 32.The sum of 3 consecutive even numbers is 210. What is the largest of them?
  33. 33.The sum of 3 consecutive numbers is 72. What is the largest of them?
  34. 34.The sum of 3 consecutive even numbers is 132. What is the largest of them?
  35. 35.The sum of 3 consecutive even numbers is 42. What is the smallest of them?
  36. 36.The sum of 4 consecutive odd numbers is 296. What is the smallest of them?
  37. 37.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?
  38. 38.The sum of 4 consecutive even numbers is 276. What is the largest of them?
  39. 39.The sum of 3 consecutive odd numbers is 123. What is the largest of them?
  40. 40.The sum of 3 consecutive numbers is 135. What is the smallest of them?

Answer key

  1. 15
  2. 24
  3. 66
  4. 58
  5. 51
  6. 28
  7. 36
  8. 62
  9. 11
  10. 26
  11. 53
  12. 35
  13. 68
  14. 34
  15. 38
  16. 29
  17. 11
  18. 76
  19. 26
  20. 10
  21. 49
  22. 11
  23. 89
  24. 20
  25. 49
  26. 21
  27. 48
  28. 71
  29. 39
  30. 76
  31. 37
  32. 72
  33. 25
  34. 46
  35. 12
  36. 71
  37. 12
  38. 72
  39. 43
  40. 44

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