← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 485 · 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 40. What is the smallest of them?
  2. 2.One number is 5 times another. Their difference is 108. What is the smaller number?
  3. 3.The sum of two numbers is 66 and their difference is 26. What is the smaller number?
  4. 4.The sum of 4 consecutive numbers is 42. What is the smallest of them?
  5. 5.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?
  6. 6.The sum of 4 consecutive odd numbers is 256. What is the smallest of them?
  7. 7.The sum of two numbers is 78 and their difference is 52. What is the larger number?
  8. 8.The digits of a two-digit number add up to 16. When the digits swap places, the number goes up by 18. What is the number?
  9. 9.The sum of 4 consecutive numbers is 122. What is the largest of them?
  10. 10.One number is 2 times another. Their difference is 14. What is the smaller number?
  11. 11.The sum of 3 consecutive even numbers is 174. What is the smallest of them?
  12. 12.The sum of 4 consecutive even numbers is 60. What is the largest of them?
  13. 13.The sum of 3 consecutive odd numbers is 159. What is the smallest of them?
  14. 14.The sum of 5 consecutive numbers is 115. What is the smallest of them?
  15. 15.The sum of two numbers is 130 and their difference is 6. What is the smaller number?
  16. 16.The sum of 3 consecutive numbers is 171. What is the smallest of them?
  17. 17.The sum of 5 consecutive numbers is 80. What is the largest of them?
  18. 18.The sum of 4 consecutive numbers is 142. What is the largest of them?
  19. 19.The sum of two numbers is 18 and their difference is 8. What is the smaller number?
  20. 20.The sum of 5 consecutive numbers is 70. What is the smallest of them?
  21. 21.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?
  22. 22.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?
  23. 23.The sum of 4 consecutive odd numbers is 200. What is the largest of them?
  24. 24.One number is 5 times another. Their difference is 16. What is the smaller number?
  25. 25.The sum of 4 consecutive numbers is 214. What is the largest of them?
  26. 26.The sum of 4 consecutive odd numbers is 192. What is the smallest of them?
  27. 27.The sum of 4 consecutive even numbers is 308. What is the smallest of them?
  28. 28.The sum of 5 consecutive numbers is 280. What is the largest of them?
  29. 29.The sum of 5 consecutive numbers is 50. What is the largest of them?
  30. 30.The sum of two numbers is 94 and their difference is 52. What is the smaller number?
  31. 31.The sum of 4 consecutive odd numbers is 152. What is the largest of them?
  32. 32.The sum of 3 consecutive even numbers is 240. What is the smallest of them?
  33. 33.One number is 4 times another. Their difference is 111. What is the smaller number?
  34. 34.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?
  35. 35.The sum of 3 consecutive even numbers is 144. What is the largest of them?
  36. 36.The sum of 4 consecutive even numbers is 244. What is the largest of them?
  37. 37.The sum of 5 consecutive numbers is 220. What is the largest of them?
  38. 38.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?
  39. 39.The sum of 3 consecutive numbers is 48. What is the smallest of them?
  40. 40.One number is 2 times another. Their difference is 22. What is the smaller number?

Answer key

  1. 7
  2. 27
  3. 20
  4. 9
  5. 67
  6. 61
  7. 65
  8. 79
  9. 32
  10. 14
  11. 56
  12. 18
  13. 51
  14. 21
  15. 62
  16. 56
  17. 18
  18. 37
  19. 5
  20. 12
  21. 59
  22. 16
  23. 53
  24. 4
  25. 55
  26. 45
  27. 74
  28. 58
  29. 12
  30. 21
  31. 41
  32. 78
  33. 37
  34. 89
  35. 50
  36. 64
  37. 46
  38. 56
  39. 15
  40. 22

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