← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 595 · 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 243. What is the smallest of them?
  2. 2.The sum of 3 consecutive numbers is 114. What is the largest of them?
  3. 3.The sum of 4 consecutive even numbers is 180. What is the smallest of them?
  4. 4.The sum of 4 consecutive even numbers is 44. What is the smallest of them?
  5. 5.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?
  6. 6.The sum of 3 consecutive odd numbers is 129. What is the largest of them?
  7. 7.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?
  8. 8.The sum of 3 consecutive numbers is 102. What is the smallest of them?
  9. 9.One number is 3 times another. Their difference is 22. What is the smaller number?
  10. 10.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?
  11. 11.The sum of two numbers is 78 and their difference is 62. What is the larger number?
  12. 12.The sum of 3 consecutive even numbers is 102. What is the smallest of them?
  13. 13.One number is 2 times another. Their difference is 30. What is the smaller number?
  14. 14.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?
  15. 15.One number is 6 times another. Their difference is 30. What is the smaller number?
  16. 16.The sum of two numbers is 117 and their difference is 79. What is the larger number?
  17. 17.The sum of 4 consecutive numbers is 50. What is the smallest of them?
  18. 18.The sum of 4 consecutive even numbers is 284. What is the largest of them?
  19. 19.The sum of 4 consecutive even numbers is 220. What is the largest of them?
  20. 20.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 54. What is the number?
  21. 21.The sum of 5 consecutive numbers is 45. What is the largest of them?
  22. 22.The sum of 4 consecutive even numbers is 36. What is the largest of them?
  23. 23.The sum of 3 consecutive numbers is 183. What is the smallest of them?
  24. 24.The sum of 5 consecutive numbers is 240. What is the smallest of them?
  25. 25.The sum of 4 consecutive odd numbers is 328. What is the largest of them?
  26. 26.The sum of 5 consecutive numbers is 150. What is the smallest of them?
  27. 27.One number is 3 times another. Their difference is 68. What is the smaller number?
  28. 28.One number is 4 times another. Their difference is 12. What is the smaller number?
  29. 29.The sum of two numbers is 95 and their difference is 49. What is the larger number?
  30. 30.The sum of 4 consecutive numbers is 166. What is the smallest of them?
  31. 31.The sum of 3 consecutive even numbers is 198. What is the largest of them?
  32. 32.The sum of 3 consecutive odd numbers is 237. What is the smallest of them?
  33. 33.The sum of 5 consecutive numbers is 85. What is the largest of them?
  34. 34.The sum of 5 consecutive numbers is 65. What is the smallest of them?
  35. 35.One number is 6 times another. Their difference is 95. What is the smaller number?
  36. 36.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?
  37. 37.The sum of 3 consecutive numbers is 159. What is the largest of them?
  38. 38.The sum of two numbers is 93 and their difference is 23. What is the smaller number?
  39. 39.The sum of 3 consecutive numbers is 42. What is the smallest of them?
  40. 40.The sum of two numbers is 82 and their difference is 52. What is the smaller number?

Answer key

  1. 79
  2. 39
  3. 42
  4. 8
  5. 79
  6. 45
  7. 89
  8. 33
  9. 11
  10. 24
  11. 70
  12. 32
  13. 30
  14. 28
  15. 6
  16. 98
  17. 11
  18. 74
  19. 58
  20. 17
  21. 11
  22. 12
  23. 60
  24. 46
  25. 85
  26. 28
  27. 34
  28. 4
  29. 72
  30. 40
  31. 68
  32. 77
  33. 19
  34. 11
  35. 19
  36. 49
  37. 54
  38. 35
  39. 13
  40. 15

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