← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 870 · 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 odd numbers is 123. What is the smallest of them?
  2. 2.The sum of 3 consecutive numbers is 165. What is the largest of them?
  3. 3.The sum of two numbers is 90 and their difference is 70. What is the larger number?
  4. 4.One number is 3 times another. Their difference is 8. What is the smaller number?
  5. 5.The sum of 4 consecutive odd numbers is 304. What is the smallest of them?
  6. 6.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?
  7. 7.The sum of 3 consecutive numbers is 168. What is the smallest of them?
  8. 8.The sum of two numbers is 111 and their difference is 39. What is the larger number?
  9. 9.The sum of 3 consecutive numbers is 126. What is the largest of them?
  10. 10.The sum of 5 consecutive numbers is 305. What is the smallest of them?
  11. 11.The sum of 5 consecutive numbers is 65. What is the largest of them?
  12. 12.The sum of two numbers is 101 and their difference is 37. What is the larger number?
  13. 13.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?
  14. 14.The sum of 5 consecutive numbers is 200. What is the largest of them?
  15. 15.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?
  16. 16.The sum of 5 consecutive numbers is 155. What is the smallest of them?
  17. 17.One number is 6 times another. Their difference is 55. What is the smaller number?
  18. 18.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?
  19. 19.The sum of two numbers is 98 and their difference is 56. What is the larger number?
  20. 20.The sum of two numbers is 30 and their difference is 14. What is the larger number?
  21. 21.The sum of two numbers is 57 and their difference is 55. What is the larger number?
  22. 22.The sum of 4 consecutive numbers is 138. What is the smallest of them?
  23. 23.The sum of 3 consecutive numbers is 60. What is the smallest of them?
  24. 24.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?
  25. 25.The sum of 3 consecutive even numbers is 48. What is the largest of them?
  26. 26.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?
  27. 27.The sum of 4 consecutive even numbers is 308. What is the largest of them?
  28. 28.The sum of 4 consecutive numbers is 122. What is the largest of them?
  29. 29.The sum of two numbers is 112 and their difference is 22. What is the smaller number?
  30. 30.The sum of 3 consecutive even numbers is 120. What is the largest of them?
  31. 31.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?
  32. 32.The sum of 3 consecutive numbers is 171. What is the smallest of them?
  33. 33.One number is 5 times another. Their difference is 28. What is the smaller number?
  34. 34.The sum of 3 consecutive odd numbers is 207. What is the smallest of them?
  35. 35.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?
  36. 36.The sum of 3 consecutive numbers is 111. What is the smallest of them?
  37. 37.The sum of 3 consecutive even numbers is 132. What is the largest of them?
  38. 38.One number is 6 times another. Their difference is 160. What is the smaller number?
  39. 39.The sum of 3 consecutive odd numbers is 45. What is the largest of them?
  40. 40.One number is 4 times another. Their difference is 117. What is the smaller number?

Answer key

  1. 39
  2. 56
  3. 80
  4. 4
  5. 73
  6. 78
  7. 55
  8. 75
  9. 43
  10. 59
  11. 15
  12. 69
  13. 56
  14. 42
  15. 37
  16. 29
  17. 11
  18. 67
  19. 77
  20. 22
  21. 56
  22. 33
  23. 19
  24. 28
  25. 18
  26. 89
  27. 80
  28. 32
  29. 45
  30. 42
  31. 35
  32. 56
  33. 7
  34. 67
  35. 68
  36. 36
  37. 46
  38. 32
  39. 17
  40. 39

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