← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 740 · 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 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?
  2. 2.The sum of 5 consecutive numbers is 60. What is the smallest of them?
  3. 3.The sum of 4 consecutive numbers is 130. What is the largest of them?
  4. 4.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?
  5. 5.The sum of 3 consecutive odd numbers is 147. What is the largest of them?
  6. 6.The sum of 4 consecutive numbers is 26. What is the smallest of them?
  7. 7.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?
  8. 8.The sum of two numbers is 49 and their difference is 31. What is the smaller number?
  9. 9.The sum of 4 consecutive even numbers is 188. What is the largest of them?
  10. 10.One number is 4 times another. Their difference is 36. What is the smaller number?
  11. 11.One number is 4 times another. Their difference is 117. What is the smaller number?
  12. 12.The sum of two numbers is 157 and their difference is 17. What is the smaller number?
  13. 13.The sum of 3 consecutive numbers is 96. What is the largest of them?
  14. 14.The sum of two numbers is 76 and their difference is 64. What is the larger number?
  15. 15.The sum of 3 consecutive numbers is 81. What is the smallest of them?
  16. 16.The sum of 5 consecutive numbers is 185. What is the largest of them?
  17. 17.One number is 4 times another. Their difference is 12. What is the smaller number?
  18. 18.The sum of 4 consecutive numbers is 230. What is the smallest of them?
  19. 19.The digits of a two-digit number add up to 10. When the digits swap places, the number goes up by 54. What is the number?
  20. 20.The sum of two numbers is 42 and their difference is 20. What is the larger number?
  21. 21.The sum of 4 consecutive even numbers is 180. What is the largest of them?
  22. 22.The sum of 3 consecutive numbers is 27. What is the smallest of them?
  23. 23.The digits of a two-digit number add up to 14. When the digits swap places, the number goes up by 36. What is the number?
  24. 24.The sum of 4 consecutive even numbers is 44. What is the largest of them?
  25. 25.One number is 5 times another. Their difference is 124. What is the smaller number?
  26. 26.The sum of 4 consecutive numbers is 134. What is the largest of them?
  27. 27.The sum of two numbers is 34 and their difference is 24. What is the larger number?
  28. 28.The sum of two numbers is 49 and their difference is 23. What is the smaller number?
  29. 29.The sum of 4 consecutive odd numbers is 56. What is the largest of them?
  30. 30.The sum of 3 consecutive numbers is 159. What is the largest of them?
  31. 31.The sum of 3 consecutive odd numbers is 165. What is the smallest of them?
  32. 32.The sum of 3 consecutive odd numbers is 63. What is the smallest of them?
  33. 33.The sum of 3 consecutive odd numbers is 153. What is the largest of them?
  34. 34.The sum of two numbers is 13 and their difference is 11. What is the smaller number?
  35. 35.The sum of two numbers is 38 and their difference is 16. What is the larger number?
  36. 36.The sum of 3 consecutive numbers is 114. What is the largest of them?
  37. 37.The sum of 4 consecutive even numbers is 44. What is the smallest of them?
  38. 38.The sum of two numbers is 89 and their difference is 41. What is the larger number?
  39. 39.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?
  40. 40.One number is 2 times another. Their difference is 32. What is the smaller number?

Answer key

  1. 29
  2. 10
  3. 34
  4. 78
  5. 51
  6. 5
  7. 35
  8. 9
  9. 50
  10. 12
  11. 39
  12. 70
  13. 33
  14. 70
  15. 26
  16. 39
  17. 4
  18. 56
  19. 28
  20. 31
  21. 48
  22. 8
  23. 59
  24. 14
  25. 31
  26. 35
  27. 29
  28. 13
  29. 17
  30. 54
  31. 53
  32. 19
  33. 53
  34. 1
  35. 27
  36. 39
  37. 8
  38. 65
  39. 89
  40. 32

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